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Sable Vespers

#631f79
Notes

Sable Vespers (#631F79) 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 (285°, 59%, 30%) 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
#631f79
RGB
rgb(99, 31, 121)
HSL
hsl(285, 59%, 30%)
HWB
hwb(285 12% 53%)
OKLCH
oklch(38.8% 0.152 316.5)
P3
color(display-p3 0.3576 0.1400 0.4580)
HSV
hsv(285, 74%, 47%)
LAB
lab(26.77% 44.26 -37.17)
LCH
lch(26.77% 57.80 319.97)
CMYK
cmyk(18%, 74%, 0%, 53%)

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.

Vespers
noun

Latin vesperae, evening prayers — the Catholic and Orthodox liturgical office sung at sunset, traditionally in the deep-violet-and-gold Liturgy of the Presanctified Gifts during Lent. Vespers color refers to a Vespers-period priest's Lenten purple chasuble: a saturated, slightly cool deep violet with the matte finish of vat-dyed liturgical wool-and-silk damask. The hour is sung between None and Compline.

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.

#631f79
Original
#003b7c
Protanopia
#1f4177
Deuteranopia
#62314a
Tritanopia
#343434
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
10.49:1
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
2.00:1

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
##631F79
Display P3
Display P3
color(display-p3 0.3576 0.1400 0.4580)
P3 has subtle headroomOKLCH chroma 0.152

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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