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Considerate Coal

#1c0417
Notes

Considerate Coal (#1C0417) is a deep magenta 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 (313°, 75%, 6%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1c0417
RGB
rgb(28, 4, 23)
HSL
hsl(313, 75%, 6%)
HWB
hwb(313 2% 89%)
OKLCH
oklch(16.5% 0.055 336.4)
P3
color(display-p3 0.0983 0.0201 0.0867)
HSV
hsv(313, 86%, 11%)
LAB
lab(3.57% 12.33 -6.01)
LCH
lch(3.57% 13.72 334.00)
CMYK
cmyk(0%, 86%, 18%, 89%)

Etymology

Considerate
adjective

Latin cōnsīderātus, thoughtful — past-participle of consider. As a color modifier, considerate implies a neutral-and-thoughtful-and-careful quality where the hue carries the visual register of careful-and-thoughtful-and-considerate coordinated color-decision matched to its surroundings. Sits at the neutral-and-friendly end of the grid, parallel to thoughtful and mannerly 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.

#1c0417
Original
#040a18
Protanopia
#0b0e16
Deuteranopia
#1e050b
Tritanopia
#0a0a0a
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
19.46:1
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
1.08:1

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
##1C0417
Display P3
Display P3
color(display-p3 0.0983 0.0201 0.0867)
Inside sRGBOKLCH chroma 0.055

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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