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Dominant Annatto

#91063a
Notes

Dominant Annatto (#91063A) is a deep magenta 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 (338°, 92%, 30%) places it in the highly saturated band at a dark 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
#91063a
RGB
rgb(145, 6, 58)
HSL
hsl(338, 92%, 30%)
HWB
hwb(338 2% 43%)
OKLCH
oklch(42.3% 0.165 9.3)
HSV
hsv(338, 96%, 57%)
LAB
lab(30.54% 53.72 10.63)
LCH
lch(30.54% 54.76 11.20)
CMYK
cmyk(0%, 96%, 60%, 43%)

Etymology

Dominant
adjective

Latin dominārī, to rule — present-participle of dominate. As a color modifier, dominant implies a saturated-and-leading quality where the hue claims visual precedence over neighboring colors in the surrounding palette. Sits at the bold-and-imperative end of the grid, parallel to commanding and authoritative.

Annatto
noun

Bixa orellana, the tropical shrub whose seeds yield a red-orange dye used as food coloring (in cheese, butter, and margarine) and as body paint by the Caribbean and Central American indigenous peoples. The color refers to fresh annatto paste: a saturated, slightly orange red with the matte finish of plant-derived pigment. Warmer than vermillion, drier than tomato.

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.

#91063a
Original
#36373b
Protanopia
#575137
Deuteranopia
#9f0021
Tritanopia
#272727
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
9.17:1
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
2.29:1

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