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Sable Thistle

#631d6f
Notes

Sable Thistle (#631D6F) is a deep violet with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (291°, 59%, 27%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#631d6f
RGB
rgb(99, 29, 111)
HSL
hsl(291, 59%, 27%)
HWB
hwb(291 11% 56%)
OKLCH
oklch(37.9% 0.145 321.4)
HSV
hsv(291, 74%, 44%)
LAB
lab(25.80% 43.01 -32.34)
LCH
lch(25.80% 53.82 323.06)
CMYK
cmyk(11%, 74%, 0%, 56%)

Etymology

Sable
noun

Martes zibellina, the Eurasian sable — a small mustelid of Siberian taiga whose deep brown-black fur was the most prized mammalian pelt of the Russian and Chinese imperial courts. The color refers to a fresh sable pelt: a deep, slightly warm near-black with the satin finish of densely packed guard hairs. Warmer than ink, glossier than coal, with the courtly weight of a fur reserved for tsars and emperors.

Thistle
noun

The thistles — Onopordum, Cirsium, Carduus — spiny composite-family perennials whose tufted purple flower heads adorn the Scottish national emblem and uncountable European pasture margins. The color refers to a fresh thistle flower at peak bloom: a soft, slightly red-shifted pale purple with the matte finish of tufted florets. Lighter than heather, warmer than lavender, with the heraldic weight of a flower that defends itself with thorns.

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

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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.

#631d6f
Original
#003871
Protanopia
#27406d
Deuteranopia
#642c44
Tritanopia
#323232
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
10.85:1
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
1.94:1

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