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Regal Cinnabar

#ae252c
Notes

Regal Cinnabar (#AE252C) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (357°, 65%, 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
#ae252c
RGB
rgb(174, 37, 44)
HSL
hsl(357, 65%, 41%)
HWB
hwb(357 15% 32%)
OKLCH
oklch(49.3% 0.173 24.0)
HSV
hsv(357, 79%, 68%)
LAB
lab(38.74% 54.22 31.19)
LCH
lch(38.74% 62.55 29.91)
CMYK
cmyk(0%, 79%, 75%, 32%)

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.

Cinnabar
noun

Mercury sulfide crystallized in volcanic veins, ground into pigment for at least four millennia. The red of Pompeian frescoes, Chinese imperial seals, the carved cinnabar lacquerware of the Ming dynasty. Toxic to grind — the mines of Almadén in Spain killed slaves and convicts for centuries — and dazzling to behold: the brilliant scarlet that gave its name to a color and a warning to apprentices.

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.

#ae252c
Original
#4f482b
Protanopia
#716627
Deuteranopia
#c00029
Tritanopia
#434343
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
6.77:1
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
3.10:1

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