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Hyper Ginkgo

#adb821
Notes

Hyper Ginkgo (#ADB821) is a true yellow with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (64°, 70%, 43%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#adb821
RGB
rgb(173, 184, 33)
HSL
hsl(64, 70%, 43%)
HWB
hwb(64 13% 28%)
OKLCH
oklch(74.9% 0.160 114.1)
HSV
hsv(64, 82%, 72%)
LAB
lab(71.74% -21.01 67.63)
LCH
lch(71.74% 70.82 107.26)
CMYK
cmyk(6%, 0%, 82%, 28%)

Etymology

Hyper
adjective

Greek hyper, over / beyond — sharing root with Latin super. As a color modifier, hyper implies a saturated-and-over-the-top-active quality where the hue exceeds normal visual amplitude with maximum-stimulation register. Sits at the bright-and-over-active end of the grid, parallel to manic and frenetic in usage.

Ginkgo
noun

Ginkgo biloba, the Chinese tree species predating dinosaurs — a living fossil whose fan-shaped leaves turn brilliant yellow in autumn. Often called the maidenhair tree. The color refers to a Ginkgo canopy at peak autumn color: a saturated, slightly cool deep yellow with the satin finish of carotenoid-rich autumn leaves.

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.

#adb821
Original
#c6af00
Protanopia
#c6b131
Deuteranopia
#b9ad9d
Tritanopia
#ababab
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
2.18:1
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
9.66:1

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