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Iridescent Yùhuáng

#bfd55a
Notes

Iridescent Yùhuáng (#BFD55A) is a true yellow with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (71°, 59%, 59%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#bfd55a
RGB
rgb(191, 213, 90)
HSL
hsl(71, 59%, 59%)
HWB
hwb(71 35% 16%)
OKLCH
oklch(83.2% 0.150 118.3)
HSV
hsv(71, 58%, 84%)
LAB
lab(81.51% -24.57 57.05)
LCH
lch(81.51% 62.11 113.30)
CMYK
cmyk(10%, 0%, 58%, 16%)

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.

Yùhuáng
noun

Literally jade-yellow in Chinese — a soft, slightly cool pale yellow used in ceremonial hetian nephrite jade and in the silks of Qing-dynasty consort robes. The color refers to a polished pale-yellow nephrite cabochon: a soft, slightly cool pale yellow with the satin finish of fine jade.

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.

#bfd55a
Original
#e2ca4d
Protanopia
#dfcb62
Deuteranopia
#c9caba
Tritanopia
#c7c7c7
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
1.63:1
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
12.88:1

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