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Decisive Akiq

#ad1428
Notes

Decisive Akiq (#AD1428) is a true red with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (352°, 79%, 38%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ad1428
RGB
rgb(173, 20, 40)
HSL
hsl(352, 79%, 38%)
HWB
hwb(352 8% 32%)
OKLCH
oklch(48.0% 0.183 22.6)
HSV
hsv(352, 88%, 68%)
LAB
lab(37.01% 57.96 31.61)
LCH
lch(37.01% 66.02 28.60)
CMYK
cmyk(0%, 88%, 77%, 32%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

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.

#ad1428
Original
#494327
Protanopia
#6e6222
Deuteranopia
#bf001e
Tritanopia
#363636
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).
AAAon White
7.22:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.91:1

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