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Knightly Bermellón

#ac2100
Notes

Knightly Bermellón (#AC2100) is a deep 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 (12°, 100%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ac2100
RGB
rgb(172, 33, 0)
HSL
hsl(12, 100%, 34%)
HWB
hwb(12 0% 33%)
OKLCH
oklch(48.3% 0.178 33.0)
HSV
hsv(12, 100%, 67%)
LAB
lab(37.59% 53.77 50.81)
LCH
lch(37.59% 73.98 43.38)
CMYK
cmyk(0%, 81%, 100%, 33%)

Etymology

Knightly
adjective

Old English cniht, young man / knight — adjectival suffix -ly. As a color modifier, knightly implies a saturated-and-chivalrous-and-medieval quality, the deep-rich color of medieval-English-and-French knight-and-squire armorial-bearings-and-livery tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and cavalier.

Bermellón
noun

Spanish for vermillion — the cinnabar-derived pigment used in the painted altarpieces of Castilian and Andalusian baroque. The color refers to a freshly mixed bermellón in a Sevillian polychrome workshop: a saturated, slightly orange red with the high gloss of pigment in oil. The Spanish equivalent of shu — different language, same mineral.

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.

#ac2100
Original
#4f4500
Protanopia
#716300
Deuteranopia
#be001d
Tritanopia
#3c3c3c
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
7.07:1
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
2.97:1

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