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Spectral Lemon

#abb712
Notes

Spectral Lemon (#ABB712) 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 (64°, 82%, 39%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#abb712
RGB
rgb(171, 183, 18)
HSL
hsl(64, 82%, 39%)
HWB
hwb(64 7% 28%)
OKLCH
oklch(74.5% 0.165 114.5)
HSV
hsv(64, 90%, 72%)
LAB
lab(71.26% -21.75 70.31)
LCH
lch(71.26% 73.60 107.19)
CMYK
cmyk(7%, 0%, 90%, 28%)

Etymology

Spectral
adjective

Latin spectrum, appearance — adjectival suffix -al. As a color modifier, spectral implies a saturated-and-rainbow-decomposed-and-pure quality, the bright color of Newton-prism sunlight-decomposed seven-color spectrum band. Sits at the bright-and-pure end of the grid, parallel to prismatic and pure in usage.

Lemon
noun

Citrus limon, the cultivated yellow citrus of southern Italian and North African groves. Originally a hybrid of citron and bitter orange, the lemon spread through the Mediterranean during the medieval Arab agricultural revolution. The color refers to the skin of a ripe Eureka lemon: a clean, slightly green-shifted yellow with the matte finish of citrus rind. The fruit's acidity gave English the figurative lemon — something that disappoints — separately from the color.

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.

#abb712
Original
#c5ad00
Protanopia
#c5b028
Deuteranopia
#b7ab9c
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
2.21:1
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
9.51:1

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