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Rich Faun Brick

#901b10
Notes

Rich Faun Brick (#901B10) 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 (5°, 80%, 31%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#901b10
RGB
rgb(144, 27, 16)
HSL
hsl(5, 80%, 31%)
HWB
hwb(5 6% 44%)
OKLCH
oklch(42.5% 0.154 30.0)
P3
color(display-p3 0.5183 0.1511 0.1016)
HSV
hsv(5, 89%, 56%)
LAB
lab(31.24% 47.15 37.41)
LCH
lch(31.24% 60.18 38.43)
CMYK
cmyk(0%, 81%, 89%, 44%)

Etymology

Rich
adjective

Old French riche, wealthy, abundant — applied to color since the medieval period for hues that read as plentiful in pigment. Rich red, rich brown: the implication is depth combined with saturation, a color that gives the eye more to absorb. Sits at the saturated mid-light corner of the engine's grid, slightly warmer than bold and deeper than vivid.

Faun
modifier

Latin Faunus, Roman-half-goat-rural-deity. As a color modifier, faun implies a half-goat-and-pastoral-and-Arcadian quality, the visual register of Roman-Faunus-and-Arcadian-pastoral-faun hand-half-goat-and-pastoral-and-Arcadian Roman-Faunus-and-Arcadian-pastoral-faun-and-Pan faun-and-half-goat-and-pastoral-and-Arcadian surfaces under Roman-Faunus-and-Arcadian-pastoral-faun-and-Pan Lupercalia-and-Arcadia-and-pipes-of-Pan pastoral-Arcadian-light. Sits at the modifier-and-myth end of the grid, parallel to satyr and dryad in usage.

Brick
noun

Fired clay, mineral red. The color refers to common building brick — iron-rich earthenware kilned to the specific dusky red-orange of a Victorian terrace, a Roman aqueduct, an adobe wall in New Mexico. Less saturated than ruby, warmer than burgundy, with a chalky cast that reads as architectural rather than decorative.

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.

#901b10
Original
#41390c
Protanopia
#5e5307
Deuteranopia
#9f001a
Tritanopia
#333333
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
8.94:1
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
2.35:1

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
##901B10
Display P3
Display P3
color(display-p3 0.5183 0.1511 0.1016)
P3 has subtle headroomOKLCH chroma 0.154

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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Canvas