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Iridescent Mimosa

#ecb536
Notes

Iridescent Mimosa (#ECB536) is a true amber with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (42°, 83%, 57%) 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
#ecb536
RGB
rgb(236, 181, 54)
HSL
hsl(42, 83%, 57%)
HWB
hwb(42 21% 7%)
OKLCH
oklch(80.3% 0.149 83.7)
HSV
hsv(42, 77%, 93%)
LAB
lab(76.77% 8.50 67.84)
LCH
lch(76.77% 68.37 82.86)
CMYK
cmyk(0%, 23%, 77%, 7%)

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.

Mimosa
noun

Two unrelated yellow flowers share this name: the European Acacia dealbata (silver wattle), whose tiny yellow puffballs cover entire trees in late winter, and the cocktail of champagne and orange juice. The color refers to a wattle inflorescence at full bloom: a soft, slightly green-shifted yellow with the powdery finish of pollen-rich flowers. The same name covers the yellow of the brunch drink — a happy etymological coincidence.

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.

#ecb536
Original
#ccb51e
Protanopia
#d9c33c
Deuteranopia
#ffa49c
Tritanopia
#b8b8b8
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
1.87:1
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
11.23:1

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