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Vibrantorange

Cool Rust Chiffon

#ac491f
Notes

Cool Rust Chiffon (#AC491F) 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 (18°, 69%, 40%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ac491f
RGB
rgb(172, 73, 31)
HSL
hsl(18, 69%, 40%)
HWB
hwb(18 12% 33%)
OKLCH
oklch(52.9% 0.141 41.3)
HSV
hsv(18, 82%, 67%)
LAB
lab(43.71% 38.26 43.26)
LCH
lch(43.71% 57.75 48.51)
CMYK
cmyk(0%, 58%, 82%, 33%)

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.

#ac491f
Original
#655919
Protanopia
#7d701b
Deuteranopia
#bd3241
Tritanopia
#5b5b5b
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).
AAon White
5.63:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.73:1

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Canvas