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Commanding Lyra Crimson

#a51d17
Notes

Commanding Lyra Crimson (#A51D17) 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 (3°, 76%, 37%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a51d17
RGB
rgb(165, 29, 23)
HSL
hsl(3, 76%, 37%)
HWB
hwb(3 9% 35%)
OKLCH
oklch(46.8% 0.172 28.6)
P3
color(display-p3 0.5940 0.1694 0.1290)
HSV
hsv(3, 86%, 65%)
LAB
lab(35.87% 53.13 39.57)
LCH
lch(35.87% 66.25 36.67)
CMYK
cmyk(0%, 82%, 86%, 35%)

Etymology

Commanding
adjective

Latin commendāre, to entrust / order — present-participle of command. As a color modifier, commanding implies a saturated-and-authoritative quality where the hue claims visual leadership of its surrounding palette. Sits at the bold-and-authoritative end of the grid, parallel to authoritative and imperial in usage.

Lyra
modifier

Greek λύρα, lyre-of-Orpheus. As a color modifier, lyra implies a small-summer-constellation-and-Orpheus-lyre quality, the visual register of summer-Lyra-and-Orpheus-lyre hand-small-summer-constellation-and-Orpheus-lyre summer-Lyra-and-Orpheus-lyre-and-Bortle-1-sky lyra-and-small-summer-constellation-and-Orpheus-lyre surfaces under summer-Lyra-and-Orpheus-lyre-and-Bortle-1-sky July-and-August-summer-zenith ring-nebula-and-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to vega and cygnus 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.

#a51d17
Original
#4a4114
Protanopia
#6b5f0e
Deuteranopia
#b6001e
Tritanopia
#393939
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
7.53:1
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
2.79:1

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
##A51D17
Display P3
Display P3
color(display-p3 0.5940 0.1694 0.1290)
P3 has subtle headroomOKLCH chroma 0.172

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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