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Assured Hermes Crimson

#ac0e23
Notes

Assured Hermes Crimson (#AC0E23) is a true 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 (352°, 85%, 36%) places it in the highly saturated band at a mid 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
#ac0e23
RGB
rgb(172, 14, 35)
HSL
hsl(352, 85%, 36%)
HWB
hwb(352 5% 33%)
OKLCH
oklch(47.4% 0.185 23.5)
P3
color(display-p3 0.6181 0.1425 0.1628)
HSV
hsv(352, 92%, 67%)
LAB
lab(36.38% 58.53 33.88)
LCH
lch(36.38% 67.62 30.06)
CMYK
cmyk(0%, 92%, 80%, 33%)

Etymology

Assured
adjective

Old French aseürer, to give assurance — past-participle of assure. As a color modifier, assured implies a saturated-and-confident quality where the hue carries unwavering certainty about its own visual identity. Sits at the bold-and-confident end of the grid, parallel to certain and poised.

Hermes
modifier

Greek Ἑρμῆς, messenger-of-the-Olympian-gods. As a color modifier, hermes implies a winged-sandal-and-caduceus-and-messenger quality, the visual register of Praxiteles-Hermes-and-Olympia-marble hand-winged-sandal-and-caduceus-and-messenger Praxiteles-Hermes-and-Olympia-marble-and-Hellenistic-bronze hermes-and-winged-sandal-and-caduceus surfaces under Praxiteles-Hermes-and-Olympia-marble-and-Hellenistic-bronze Olympian-pantheon-and-marketplace Mediterranean-marble-light. Sits at the modifier-and-myth end of the grid, parallel to zeus and atlas in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#ac0e23
Original
#484122
Protanopia
#6d611c
Deuteranopia
#be001a
Tritanopia
#313131
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
7.39:1
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
2.84:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##AC0E23
Display P3
Display P3
color(display-p3 0.6181 0.1425 0.1628)
P3 has visible headroomOKLCH chroma 0.185

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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