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Aristocratic Sleet Ruby

#9d001c
Notes

Aristocratic Sleet Ruby (#9D001C) 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 (349°, 100%, 31%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#9d001c
RGB
rgb(157, 0, 28)
HSL
hsl(349, 100%, 31%)
HWB
hwb(349 0% 38%)
OKLCH
oklch(43.9% 0.177 23.4)
HSV
hsv(349, 100%, 62%)
LAB
lab(32.38% 56.26 32.89)
LCH
lch(32.38% 65.16 30.31)
CMYK
cmyk(0%, 100%, 82%, 38%)

Etymology

Aristocratic
adjective

Greek aristokratía, rule by the best — adjectival suffix -ic. As a color modifier, aristocratic implies a saturated-and-noble-and-hereditary quality, the deep-rich color of pre-modern European aristocracy hereditary-class livery-and-armorial-bearings. Sits at the bold-and-aristocratic end of the grid, parallel to patrician and lordly.

Sleet
modifier

Middle English slete, icy-rain-or-snow-rain-mix. As a color modifier, sleet implies an icy-rain-and-half-frozen-and-driven quality, the visual register of North-Sea-and-Yorkshire-Moors-sleet hand-icy-rain-and-half-frozen-and-driven North-Sea-and-Yorkshire-Moors-sleet-and-Pennine-pass sleet-and-icy-rain-and-half-frozen surfaces under North-Sea-and-Yorkshire-Moors-sleet-and-Pennine-pass Yorkshire-Moors-and-Pennine-Way-and-Cleveland-Hills North-Sea-front-light. Sits at the modifier-and-weather end of the grid, parallel to hail and rime 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.

#9d001c
Original
#3f381b
Protanopia
#625715
Deuteranopia
#ae0010
Tritanopia
#232323
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
8.57:1
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
2.45:1

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