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Handmade Coal

#100224
Notes

Handmade Coal (#100224) is a deep indigo with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (265°, 89%, 7%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#100224
RGB
rgb(16, 2, 36)
HSL
hsl(265, 89%, 7%)
HWB
hwb(265 1% 86%)
OKLCH
oklch(15.0% 0.071 298.4)
P3
color(display-p3 0.0547 0.0098 0.1343)
HSV
hsv(265, 94%, 14%)
LAB
lab(2.54% 11.75 -17.96)
LCH
lch(2.54% 21.46 303.18)
CMYK
cmyk(56%, 94%, 0%, 86%)

Etymology

Handmade
adjective

English compound hand + past-participle made — sharing root with make. As a color modifier, handmade implies a neutral-and-hand-built-and-craft quality, the neutral color of Mingei-Japanese-and-Shaker-and-Wedgwood hand-built-and-craft-tradition pottery-and-textile-and-furniture surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to handcrafted and artisanal in usage.

Coal
noun

Fossilized Carboniferous plant carbon — peat compressed for hundreds of millions of years until volatiles drove off and carbon concentrations exceeded ninety percent in anthracite. The color refers to a freshly cut anthracite seam: a deep, slightly muted black with the slight metallic luster of high-rank coal. Warmer than obsidian, drier than tar, with the industrial-revolution weight of the fuel that powered the eighteenth and nineteenth centuries.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#100224
Original
#000925
Protanopia
#000923
Deuteranopia
#0b0911
Tritanopia
#070707
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
19.88:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.06:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##100224
Display P3
Display P3
color(display-p3 0.0547 0.0098 0.1343)
Inside sRGBOKLCH chroma 0.071

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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