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Robust Akiq

#af3634
Notes

Robust Akiq (#AF3634) is a true red with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (1°, 54%, 45%) 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
#af3634
RGB
rgb(175, 54, 52)
HSL
hsl(1, 54%, 45%)
HWB
hwb(1 20% 31%)
OKLCH
oklch(51.2% 0.158 25.5)
HSV
hsv(1, 70%, 69%)
LAB
lab(41.22% 48.86 29.35)
LCH
lch(41.22% 56.99 30.99)
CMYK
cmyk(0%, 69%, 70%, 31%)

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.

Akiq
noun

The Arabic word for carnelian — the translucent red chalcedony seal-stone of the Islamic world, traditionally believed to deflect evil. Used for carved engagement rings, prayer-bead strands, and the seal-stones of Mughal court documents. The color refers to a polished akiq cabochon: a soft, slightly translucent red-orange with the warmth of iron-stained chalcedony. Warmer than carnelian, drier than coral.

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.

#af3634
Original
#585133
Protanopia
#766b30
Deuteranopia
#c01137
Tritanopia
#505050
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
6.18:1
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
3.40:1

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