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Luminous Yuzu

#ed7b19
Notes

Luminous Yuzu (#ED7B19) is a true orange with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (28°, 85%, 51%) places it in the highly saturated band at a mid 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
#ed7b19
RGB
rgb(237, 123, 25)
HSL
hsl(28, 85%, 51%)
HWB
hwb(28 10% 7%)
OKLCH
oklch(70.0% 0.170 53.3)
HSV
hsv(28, 89%, 93%)
LAB
lab(63.55% 38.54 65.90)
LCH
lch(63.55% 76.34 59.68)
CMYK
cmyk(0%, 48%, 89%, 7%)

Etymology

Luminous
adjective

Latin lūminōsus, full of light — adjectival suffix -ous, derived from lūmen (light). As a color modifier, luminous implies a saturated-and-light-emitting quality where the hue carries internal-glow visual register. Sits at the bright-and-saturated end of the grid, parallel to radiant and resplendent 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

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.

#ed7b19
Original
#9d8a00
Protanopia
#b8a416
Deuteranopia
#ff616a
Tritanopia
#8c8c8c
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).
Failon White
2.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.45:1

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