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Spartan Haori Ruby

#a71529
Notes

Spartan Haori Ruby (#A71529) 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°, 78%, 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a71529
RGB
rgb(167, 21, 41)
HSL
hsl(352, 78%, 37%)
HWB
hwb(352 8% 35%)
OKLCH
oklch(46.9% 0.177 21.9)
P3
color(display-p3 0.6005 0.1520 0.1804)
HSV
hsv(352, 87%, 65%)
LAB
lab(35.82% 56.16 29.32)
LCH
lch(35.82% 63.36 27.56)
CMYK
cmyk(0%, 87%, 75%, 35%)

Etymology

Spartan
adjective

Greek Spartiátēs, of Sparta — adjectival suffix referring to the Lacedaemonian warrior city. As a color modifier, spartan implies a saturated-and-disciplined-and-formal quality, the deep-rich color of Spartan-hoplite military-class crimson-and-bronze armor-and-cloak. Sits at the bold-and-formal end of the grid, parallel to austere and stern in tone.

Haori
modifier

Japanese haori, short-jacket-over-kimono. As a color modifier, haori implies a Japanese-haori-and-short-jacket-over-kimono quality, the visual register of Edo-and-Meiji-haori-jacket hand-Japanese-haori-and-short-jacket-over-kimono Edo-and-Meiji-haori-jacket-and-Kyoto-Nishijin-and-Tokyo-Asakusa haori-and-Japanese-haori-and-short-jacket surfaces under Edo-and-Meiji-haori-jacket-and-Kyoto-Nishijin-and-Tokyo-Asakusa Edo-Tokugawa-and-Meiji-Tokyo Japanese-jacket-light. Sits at the modifier-and-textile end of the grid, parallel to kimono and sari in usage.

Ruby
noun

From the Latin ruber — simply, red. The gemstone is a chromium-tinged corundum, harder than anything in nature except diamond, and so saturated that a fine Burmese pigeon's blood ruby at auction outpaces a comparable diamond by weight. The color borrows the gem's confidence: a clear, glassy red without the brown of garnet or the blue of crimson.

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.

#a71529
Original
#474128
Protanopia
#6a5f24
Deuteranopia
#b8001f
Tritanopia
#353535
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
7.55:1
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
2.78:1

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
##A71529
Display P3
Display P3
color(display-p3 0.6005 0.1520 0.1804)
P3 has subtle headroomOKLCH chroma 0.177

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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