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Anchored Sleet Ruby

#8f0017
Notes

Anchored Sleet Ruby (#8F0017) 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 (350°, 100%, 28%) 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
#8f0017
RGB
rgb(143, 0, 23)
HSL
hsl(350, 100%, 28%)
HWB
hwb(350 0% 44%)
OKLCH
oklch(41.0% 0.166 23.9)
P3
color(display-p3 0.5126 0.0940 0.1149)
HSV
hsv(350, 100%, 56%)
LAB
lab(29.17% 52.50 31.64)
LCH
lch(29.17% 61.29 31.08)
CMYK
cmyk(0%, 100%, 84%, 44%)

Etymology

Anchored
adjective

The past participle of anchor, used since the late nineteenth century as a metaphor for secured in place. As a color word, anchored implies a deep saturated tone that grounds a palette — the dark blues, deep greens, and browns that hold a composition together. Sits in the bold-and-deep corner of the grid alongside solid.

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.

#8f0017
Original
#383216
Protanopia
#594f10
Deuteranopia
#9e000d
Tritanopia
#202020
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
9.63:1
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
2.18:1

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
##8F0017
Display P3
Display P3
color(display-p3 0.5126 0.0940 0.1149)
P3 has subtle headroomOKLCH chroma 0.166

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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