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Cool Barrack

#240810
Notes

Cool Barrack (#240810) is a deep red 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 (343°, 64%, 9%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#240810
RGB
rgb(36, 8, 16)
HSL
hsl(343, 64%, 9%)
HWB
hwb(343 3% 86%)
OKLCH
oklch(18.7% 0.049 5.2)
P3
color(display-p3 0.1281 0.0379 0.0629)
HSV
hsv(343, 78%, 14%)
LAB
lab(5.30% 14.30 1.19)
LCH
lch(5.30% 14.35 4.74)
CMYK
cmyk(0%, 78%, 56%, 86%)

Etymology

Cool
adjective

Old English cōl, of low temperature — used as a color modifier as the complement to warm. Cool gray, cool blue: the optical impression of a slight blue-green shift, even within otherwise warm or neutral hues. Sits across the crisp, hushed, pale, and neutral buckets.

Barrack
noun

French baraque, soldier's hut — the deep-cool-gray utilitarian-stone-and-brick soldier-billet architecture of post-Napoleonic European military bases. Barrack color refers to an Aldershot-Garrison-period English barrack-block exterior in November-overcast light: a dark cool-gray with the matte finish of London-stock-brick hand-fired and hand-laid Victorian military barrack-construction.

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.

#240810
Original
#0d0e10
Protanopia
#15140f
Deuteranopia
#28050b
Tritanopia
#0f0f0f
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
18.80:1
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
1.12:1

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
##240810
Display P3
Display P3
color(display-p3 0.1281 0.0379 0.0629)
Inside sRGBOKLCH chroma 0.049

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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