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Iridescent Cognac

#fbbf3b
Notes

Iridescent Cognac (#FBBF3B) 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°, 96%, 61%) 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
#fbbf3b
RGB
rgb(251, 191, 59)
HSL
hsl(41, 96%, 61%)
HWB
hwb(41 23% 2%)
OKLCH
oklch(83.8% 0.155 82.6)
HSV
hsv(41, 76%, 98%)
LAB
lab(80.79% 9.83 70.38)
LCH
lch(80.79% 71.06 82.05)
CMYK
cmyk(0%, 24%, 76%, 2%)

Etymology

Iridescent
adjective

Latin Īris, rainbow — adjectival suffix -escent, named for the Greek goddess of the rainbow. As a color modifier, iridescent implies a saturated-and-multi-spectrum-shifting quality, the bright color of peacock-feather-and-soap-bubble structurally-colored-and-thin-film optical-interference patterns. Sits at the bright-and-shifting end of the grid, parallel to prismatic and holographic in usage.

Cognac
noun

The eastward-of-Bordeaux French region — and the brandy distilled there from Ugni Blanc grapes and aged in Limousin oak. The color refers to a 30-year-old XO Cognac in a snifter: a saturated, slightly red-shifted deep gold-brown with the optical complexity of long oak aging. Warmer than brandy, deeper than whiskey.

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.

#fbbf3b
Original
#d8c023
Protanopia
#e6cf41
Deuteranopia
#ffada5
Tritanopia
#c2c2c2
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
1.66:1
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
12.62:1

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