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Combustive Lemon

#cad555
Notes

Combustive Lemon (#CAD555) 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 (65°, 60%, 58%) 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
#cad555
RGB
rgb(202, 213, 85)
HSL
hsl(65, 60%, 58%)
HWB
hwb(65 33% 16%)
OKLCH
oklch(84.0% 0.151 113.8)
HSV
hsv(65, 60%, 84%)
LAB
lab(82.27% -20.52 60.27)
LCH
lch(82.27% 63.67 108.80)
CMYK
cmyk(5%, 0%, 60%, 16%)

Etymology

Combustive
adjective

Latin combūstus, burnt — adjectival suffix -ive, derived from com-burere (to burn-up). As a color modifier, combustive implies a saturated-and-burning-active quality, the bright color of blast-furnace-and-foundry combustion-chamber emission. Sits at the bright-and-warm end of the grid, parallel to fiery and blazing 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.

#cad555
Original
#e3cb46
Protanopia
#e3ce5d
Deuteranopia
#d6c9ba
Tritanopia
#c9c9c9
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
1.60:1
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
13.16:1

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