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Regal Cochineal

#aa252a
Notes

Regal Cochineal (#AA252A) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (358°, 64%, 41%) 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
#aa252a
RGB
rgb(170, 37, 42)
HSL
hsl(358, 64%, 41%)
HWB
hwb(358 15% 33%)
OKLCH
oklch(48.5% 0.169 24.5)
HSV
hsv(358, 78%, 67%)
LAB
lab(37.91% 52.93 31.25)
LCH
lch(37.91% 61.46 30.56)
CMYK
cmyk(0%, 78%, 75%, 33%)

Etymology

Regal
adjective

Latin rēgālis, kingly — derived from rēx (king). As a color modifier, regal implies a saturated-and-royal-formality quality, the deep-rich color of British-Coronation-period royal vestment-and-mantle and Imperial-State-Crown regalia. Sits at the bold-and-imperial end of the grid, parallel to sovereign and royal in usage.

Cochineal
noun

Dactylopius coccus, the Mexican scale insect cultivated on prickly-pear cactus and harvested for its deep red carminic-acid dye. Shipped to Spain by the conquistadors, cochineal became the second most valuable export from the New World after silver. The color refers to fresh cochineal pigment: a saturated, slightly cool deep red with the brilliance of a dye thirty times stronger than kermes.

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.

#aa252a
Original
#4e4729
Protanopia
#6f6425
Deuteranopia
#bb0029
Tritanopia
#424242
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
6.98:1
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
3.01:1

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