colors
Back to gallery

Robust Butternut

#e25a1b
Notes

Robust Butternut (#E25A1B) is a true orange with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (19°, 79%, 50%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#e25a1b
RGB
rgb(226, 90, 27)
HSL
hsl(19, 79%, 50%)
HWB
hwb(19 11% 11%)
OKLCH
oklch(63.7% 0.183 41.2)
HSV
hsv(19, 88%, 89%)
LAB
lab(55.65% 50.30 58.58)
LCH
lch(55.65% 77.21 49.35)
CMYK
cmyk(0%, 60%, 88%, 11%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Butternut
noun

Cucurbita moschata — the cream-skinned, orange-fleshed squash that became the dominant winter cultivar across North American kitchens in the late twentieth century. The color refers to roasted butternut flesh: a soft, slightly red yellow-orange with the matte finish of cooked squash. Cooler than kabocha, warmer than cantaloupe.

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.

#e25a1b
Original
#81720c
Protanopia
#a39112
Deuteranopia
#f9364f
Tritanopia
#727272
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).
AA Largeon White
3.68:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.71:1

Related Colors

Canvas