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Incandescent Walnut

#f3c138
Notes

Incandescent Walnut (#F3C138) is a true amber with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (44°, 89%, 59%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#f3c138
RGB
rgb(243, 193, 56)
HSL
hsl(44, 89%, 59%)
HWB
hwb(44 22% 5%)
OKLCH
oklch(83.3% 0.154 87.4)
HSV
hsv(44, 77%, 95%)
LAB
lab(80.45% 5.29 70.81)
LCH
lch(80.45% 71.01 85.73)
CMYK
cmyk(0%, 21%, 77%, 5%)

Etymology

Incandescent
adjective

Latin incandēscēns, growing-hot — present-participle of incandēscere, sharing root with candere (to shine). As a color modifier, incandescent implies a saturated-and-glowing-hot quality, the bright color of tungsten-filament-glow incandescent-lamp light. Sits at the bright-and-warm end of the grid, parallel to glowing and blazing in usage.

Walnut
noun

Juglans regia, the Persian walnut — a tree cultivated for nuts and timber throughout the ancient Mediterranean. The color refers to finished walnut wood: a warm, slightly purple-brown with the deep grain of a hardwood prized for furniture and gun stocks. The pigment of the wood is identical to the dye made from the outer husks of the nuts, which stain anything they touch.

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.

#f3c138
Original
#d8c01d
Protanopia
#e4cd40
Deuteranopia
#ffb0a7
Tritanopia
#c2c2c2
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
1.68:1
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
12.50:1

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