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Vibrantyellow

Deep Lemon Crystal

#a7b721
Notes

Deep Lemon Crystal (#A7B721) 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 (66°, 69%, 42%) 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
#a7b721
RGB
rgb(167, 183, 33)
HSL
hsl(66, 69%, 42%)
HWB
hwb(66 13% 28%)
OKLCH
oklch(74.2% 0.161 116.1)
HSV
hsv(66, 82%, 72%)
LAB
lab(71.00% -23.08 66.81)
LCH
lch(71.00% 70.69 109.06)
CMYK
cmyk(9%, 0%, 82%, 28%)

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.

#a7b721
Original
#c4ad00
Protanopia
#c3af31
Deuteranopia
#b2ac9c
Tritanopia
#a9a9a9
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
2.22:1
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
9.44:1

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