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Lustrous Mocha

#f6bc3c
Notes

Lustrous Mocha (#F6BC3C) is a true amber 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 (41°, 91%, 60%) 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
#f6bc3c
RGB
rgb(246, 188, 60)
HSL
hsl(41, 91%, 60%)
HWB
hwb(41 24% 4%)
OKLCH
oklch(82.7% 0.152 82.8)
HSV
hsv(41, 76%, 96%)
LAB
lab(79.55% 9.32 68.67)
LCH
lch(79.55% 69.30 82.27)
CMYK
cmyk(0%, 24%, 76%, 4%)

Etymology

Lustrous
adjective

From the Latin lustrare, to illuminate — used as a color word since the seventeenth century for hues with the slight specular shine of polished metal or silk. Lustrous green, lustrous gold: the implication is moderate-to-high saturation combined with surface reflectivity. Sits at the bright-and-glossy corner alongside gleaming.

Mocha
noun

A variety of agate from the Yemeni port of al-Mukhā — characterized by tree-like dendritic inclusions in a yellow-tan ground. Also the Yemeni coffee that gave its name to the chocolate-coffee drink. The color refers to a polished mocha-agate cabochon: a soft, slightly muted warm tan with the matte finish of cryptocrystalline silica.

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.

#f6bc3c
Original
#d4bc26
Protanopia
#e2cb42
Deuteranopia
#ffaaa3
Tritanopia
#bfbfbf
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
1.72:1
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
12.18:1

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