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Noble Aztec Crimson

#811f50
Notes

Noble Aztec Crimson (#811F50) is a deep magenta 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 (330°, 61%, 31%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#811f50
RGB
rgb(129, 31, 80)
HSL
hsl(330, 61%, 31%)
HWB
hwb(330 12% 49%)
OKLCH
oklch(41.5% 0.140 354.6)
P3
color(display-p3 0.4649 0.1540 0.3090)
HSV
hsv(330, 76%, 51%)
LAB
lab(29.98% 45.41 -5.22)
LCH
lch(29.98% 45.71 353.44)
CMYK
cmyk(0%, 76%, 38%, 49%)

Etymology

Noble
adjective

Latin nōbilis, well-known / illustrious — sharing root with gnōscere (to know). As a color modifier, noble implies a saturated-and-dignified-and-aristocratic quality, the deep-rich color of pre-modern European noble-class hereditary-aristocratic livery-and-armorial bearings. Sits at the bold-and-aristocratic end of the grid, parallel to aristocratic and highborn in usage.

Aztec
modifier

Nahuatl Aztēcatl, one-from-Aztlán. As a color modifier, aztec implies a Mexica-and-Tenochtitlan-Imperial quality, the visual register of Aztec-Empire-of-Tenochtitlan hand-built basalt-and-obsidian-and-feather-and-codex Aztec-Imperial-and-Mexica-tribute surfaces under high-altitude Tenochtitlan Aztec-Empire central-Mexico mid-altitude light. Sits at the modifier-and-cultural end of the grid, parallel to inca and toltec 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.

#811f50
Original
#323b51
Protanopia
#4d4d4e
Deuteranopia
#8c1534
Tritanopia
#373737
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
9.35:1
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
2.25:1

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
##811F50
Display P3
Display P3
color(display-p3 0.4649 0.1540 0.3090)
P3 has subtle headroomOKLCH chroma 0.140

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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