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Indigenous Cathedral

#240b0b
Notes

Indigenous Cathedral (#240B0B) is a deep red with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (0°, 53%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#240b0b
RGB
rgb(36, 11, 11)
HSL
hsl(0, 53%, 9%)
HWB
hwb(0 4% 86%)
OKLCH
oklch(19.1% 0.043 22.0)
P3
color(display-p3 0.1289 0.0487 0.0461)
HSV
hsv(0, 69%, 14%)
LAB
lab(5.77% 12.25 4.34)
LCH
lch(5.77% 12.99 19.51)
CMYK
cmyk(0%, 69%, 69%, 86%)

Etymology

Indigenous
adjective

Latin indigena, native-born — adjectival suffix -ous. As a color modifier, indigenous implies a neutral-and-native-and-traditional quality, the neutral color of Indigenous-and-First-Nations hand-built-and-tradition-rooted ceremonial-craft pottery-and-textile-and-totem surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to native and aboriginal in usage.

Cathedral
noun

The interior color of an aging Gothic cathedral — limestone darkened by centuries of candle smoke, incense, and city soot. The color refers to the upper walls of Notre-Dame de Paris before the 2019 fire and restoration: a soft, slightly muted dark gray with the matte finish of weathered porous stone. Cooler than smoke, warmer than slate, with the architectural weight of a building type whose interiors are read primarily in shadow.

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.

#240b0b
Original
#11100b
Protanopia
#17150a
Deuteranopia
#28070b
Tritanopia
#101010
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
18.62:1
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
1.13:1

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
##240B0B
Display P3
Display P3
color(display-p3 0.1289 0.0487 0.0461)
Inside sRGBOKLCH chroma 0.043

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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