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Homey Coal

#150027
Notes

Homey Coal (#150027) 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 (272°, 100%, 8%) 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
#150027
RGB
rgb(21, 0, 39)
HSL
hsl(272, 100%, 8%)
HWB
hwb(272 0% 85%)
OKLCH
oklch(15.6% 0.081 305.2)
P3
color(display-p3 0.0716 0.0032 0.1456)
HSV
hsv(272, 100%, 15%)
LAB
lab(2.76% 15.76 -19.91)
LCH
lch(2.76% 25.39 308.36)
CMYK
cmyk(46%, 100%, 0%, 85%)

Etymology

Homey
adjective

Old English hām, home — adjectival suffix -y. As a color modifier, homey implies a neutral-and-comfortable-and-domestic quality, the neutral color of American-and-English-cottage domestic-and-everyday hand-spun-and-comfortable interior-and-textile-finish surface. Sits at the neutral-and-traditional end of the grid, parallel to homespun and folksy 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.

#150027
Original
#000928
Protanopia
#000a26
Deuteranopia
#110812
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
19.79:1
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
##150027
Display P3
Display P3
color(display-p3 0.0716 0.0032 0.1456)
P3 has subtle headroomOKLCH chroma 0.081

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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