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Regal Cinnamon

#ab4e01
Notes

Regal Cinnamon (#AB4E01) is a deep orange 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 (27°, 99%, 34%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ab4e01
RGB
rgb(171, 78, 1)
HSL
hsl(27, 99%, 34%)
HWB
hwb(27 0% 33%)
OKLCH
oklch(53.4% 0.142 49.6)
HSV
hsv(27, 99%, 67%)
LAB
lab(44.39% 34.72 53.90)
LCH
lch(44.39% 64.11 57.21)
CMYK
cmyk(0%, 54%, 99%, 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.

Cinnamon
noun

The inner bark of Cinnamomum verum, the Sri Lankan true cinnamon — harvested in thin scrolls and dried into the curled quills familiar from spice shelves. The color is freshly ground cinnamon powder: a warm, slightly dusty red-brown that sits between rust and cocoa. Warmer than walnut, drier than caramel, with the resinous warmth of a spice that has driven trade routes since the Roman Empire.

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.

#ab4e01
Original
#695c00
Protanopia
#807100
Deuteranopia
#bc3842
Tritanopia
#5c5c5c
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
5.49:1
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
3.82:1

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