Skin art guide

Practical pixel-art rules for 64×64 Minecraft skins, written for agents: where features go, how to shade, and the mistakes that make skins look amateur. The last section covers items, blocks, GUI sprites, particles, animation and glow.

#The face (head.front, 8×8)

The face is 8 pixels wide, so every pixel is a decision. A reliable layout:

HHHHHHHH   H hair      h hair highlight
HhHHHhHH   S skin      s skin shadow
HSSSSSSH   D brow      W eye white
SDDSSDDS   E iris      M mouth
SWESSEWS
SSSssSSS
SSsMMsSS
SSSSSSSS

Rules of thumb:

• Eyes 2 px wide (white + iris) read best. Iris toward the center gives a friendly look; toward the edges looks surprised.
• Never outline the face in black. Contrast comes from value, not lines.
• Hair should wrap: continue it on head.top, head.back and the upper/back part of head.right / head.left.

#Faces that aren't human

Animals and creatures read through the muzzle, the eye shape and the ears, not through a human face painted in fur color.

Dog or bear (muzzle on rows 5–7, ears on the head sides):

FFFFFFFF   F fur          f fur highlight
FfFFFFfF   W eye white    E pupil
FFFFFFFF   M muzzle (lighter or darker than the fur)
FWEFFEWF   N nose (dark, 2 px)
FWEFFEWF   m mouth line
FFMNNMFF
FMMmmMMF
FFMMMMFF

Cartoon character (big 2×2 eyes, small mouth, no nose):

HHHHHHHH   H hair         S skin
HSSSSSSH   W eye white    E pupil
SWWSSWWS   m mouth
SWESSEWS
SSSSSSSS
SSSmmSSS
SSSSSSSS
SSSSSSSS

• Cat: eyes with vertical pupils, a small pink nose at x=3–4 on row 5, a "w" mouth on row 6.
• Robot: a visor band across rows 3–4 (full width, a glowing color) instead of eyes.
• Monster: one big eye or eyes off-center, teeth as alternating light pixels on row 6.

#Body landmarks

#Shading

Minecraft's lighting is flat, so skins carry their own shading. Assume light from above and slightly in front.

1. Tone ramp per material: 3 to 4 tones: highlight, base, shadow, deep. "cloth~1", "cloth", "cloth~-1", "cloth~-2" gives a hue-shifted ramp from one color; : shifts (cloth:-12) change lightness only.
2. Top-down: lighter on top rows/top faces, darker toward the bottom of each part. gradient with steps: 3–5, or shade on the last row.
3. Inner and back faces darker: limbs' inner faces (rightArm.left, rightLeg.left, …) and back faces by −6…−10.
4. Separate overlapping parts: the row where sleeves end, where shirt meets pants, and where boots begin should have a 1 px shadow.
5. Texture, not noise soup: noise with jitter 2–5 for cloth/metal grain; 6+ looks dirty. Don't jitter faces or small details.
6. Hue-shift shadows for richer art: shadows slightly cooler/more saturated, highlights warmer. The ~ tone steps do this for you.

#Match the source's style

• Cartoon and anime characters: flat, clean color areas with cel shading (one highlight tone and one shadow tone per color, in shapes, not grain). No noise on skin or fur.
• Realistic or rugged characters (knights, miners, soldiers): material texture fits: cloth weave, metal scratches, leather grain.
• Texture is for materials, not for everything. A large area that should read as one smooth color stays smooth, with a gradient for light.

#Color

• 15–60 distinct colors is typical for a good skin. Fewer than 6 looks flat.
• 1 dominant hue, 1–2 secondary, 1 accent (small area, high saturation: buckles, eyes, gems, lights).
• Keep adjacent parts at different values (lightness), not just hues. Silhouettes must read in grayscale.
• One-color characters (a white pig, a black cat, a silver robot) still need parts that read apart: keep the head lightest, the torso a step darker or with a lighter belly or chest, arms and legs a step darker again ("fur:-8"), hands and feet darker still, and a 1 px darker seam where arm meets body. The review's R3 compares the average lightness (L*, 0–100) of what you see on head.front, body.front and the leg fronts, overlay included, so a dark face or a light overlay shifts the head's value. It passes at an average gap of about 6 points; 10 or more reads clearly. Arms aren't measured: keep them apart from the torso yourself.
• Shared textures: when one texture is drawn in several places (a mob's four legs, both ears, both wings), its colors must fit every spot. Under a striped or gradient body, pick leg colors that work under both the front and the rear.
• Ice, glass and other glossy surfaces: a smooth base (plain or noise jitter ≤2) with a few large lighter facets and highlights and sharp darker cracks. Even grain everywhere reads as snow or stone.
• Avoid pure #000000 and pure #ffffff in large areas.

#The overlay layer

The overlay is a shell 0.5 px (head) / 0.25 px (body, limbs) outside the base. It is what makes skins feel 3D.

• Hair volume: extend hair on head.*@overlay a pixel or two past the base hairline.
• Hoods / helmets: fill head@overlay, then clear where the face should show.
• Jackets, scarves, belts with pouches, backpacks: body.*@overlay.
• Cuffs, gloves, boot tops: arms/legs.*@overlay bands.
• Keep overlay pixels fully opaque or fully transparent.

#Workflow that works

1. fill all (or material on all) with the dominant skin/suit color (no transparent base).
2. Parts with material: the right kind (fabric, leather, metal…) gives texture and tone variation in one layer.
3. Bands with region: sleeves, belt, waist, cuffs, hands, shoes, boots. No row numbers to get wrong.
4. Head: face (or pixels for a custom face), then hair, which wraps top, back and sides and adds overlay volume.
5. lighting: light from above on everything but the face.
6. Details on one side (they stay crisp because they come after the texture and light); mirror limbs; then asymmetric details.
7. Overlay pass: hood, collar, cuffs, gear.
8. Review, screenshot, patch.

The high-level ops are a floor, not a ceiling: they guarantee a readable face, wrapped hair and consistent light, and leave you free to replace any of it with hand-placed pixels where the character needs personality.

#Common mistakes

#Items, blocks, GUI and particles

Small textures follow vanilla's own style, which is not a skin's. Measured on the 1.21.11 files: a sword or an apple uses about 11 or 12 colors, stone 4, an ore 10, a particle 5 or 6.

Items (16×16). One object, centered, on a transparent background, with a 1-pixel outline in a dark tone of its own color, not black ("blade~-3"). Light from the top left: the highlight on the upper-left edges, the shadow on the lower right. Swords, tools and wands run diagonally from bottom left to top right, the way vanilla draws them. Three to five tones per material; leave the inside of large items flat enough to read at 16 pixels.

Blocks. A block is seen tiled, so it has no outline and no edge features: nothing lines its border, and shapes that touch one edge continue on the opposite edge (tile-seam measures it; look at the tiled panel of the sheet). Keep the contrast low (stone has 4 close grays) and texture in clusters of 2 or 3 pixels, not single-pixel static. An ore is the stone texture with a few clusters of the ore color, each with a highlight and a dark rim. A log's side runs its bark vertically; its _top has rings and a bark border. A grass block's side keeps the top 2 to 4 rows green with a ragged lower edge over the dirt.

Plants. A transparent background, the stem touching the bottom row, and the silhouette doing most of the work: it is drawn on two crossed planes, so it reads from every side.

GUI. Vanilla's palette: panels #c6c6c6 with a #ffffff highlight on the top and left, a #555555 shadow on the bottom and right and a black outline whose corner pixels are left out; slots #8b8b8b inset, #373737 on the top and left and #ffffff on the bottom and right; buttons (1.21) a black outline, a gray face, a lighter top row, nine_slice with a border of 3. The bevel op draws all of these. A vanilla button is three sprites: widget/button, widget/button_highlighted (under the mouse, with a white outline) and widget/button_disabled (grayed out); make the set, one spec each or a family. Keep a sprite's edges plain where nine-slice repeats them: a gradient along a button's length breaks when the game stretches it.

Particles (8×8). A bright core, two or three tones toward the edge, a transparent background. Animate them by shrinking or fading over 3 to 8 frames.

Animation. Change little between frames: a few pixels moving, a color pulsing. Two to eight frames at a frametime of 2 to 6 reads as motion; interpolate smooths a glow or a liquid. Repeating a frame costs nothing: it is stored once.

Glow. Mark only what lights up (eyes, runes, a core) as emissive, and paint it bright and saturated: the game draws it at full brightness in the dark, so a dull color glows dull.