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Defined Yuzu

#8b3b07
Notes

Defined Yuzu (#8B3B07) is a deep orange 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 (24°, 90%, 29%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8b3b07
RGB
rgb(139, 59, 7)
HSL
hsl(24, 90%, 29%)
HWB
hwb(24 3% 45%)
OKLCH
oklch(45.4% 0.123 46.3)
HSV
hsv(24, 95%, 55%)
LAB
lab(35.27% 31.58 43.61)
LCH
lch(35.27% 53.85 54.09)
CMYK
cmyk(0%, 58%, 95%, 45%)

Etymology

Defined
adjective

Latin dēfīnīre, to set bounds — past-participle of define. As a color modifier, defined implies a clear-and-edge-distinct-and-precise quality where the hue carries the visual register of sharp-bounded-and-clearly-delimited surface. Sits at the crisp-and-clear end of the grid, parallel to crisp and sharp in usage.

Yuzu
noun

Citrus junos, the Japanese citrus prized for its aromatic peel — used in yuzu kosho paste, yuzu ponzu, and the yuzu-yu baths of Japanese New Year. The color refers to a fully ripe yuzu in late autumn: a soft, slightly cool yellow-orange with the matte finish of pebbled citrus rind. Cooler than mikan, lighter than tangerine.

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

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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.

#8b3b07
Original
#524800
Protanopia
#665a03
Deuteranopia
#992832
Tritanopia
#484848
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
7.70:1
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
2.73:1

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