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Saturnine Patchouli

#631b87
Notes

Saturnine Patchouli (#631B87) is a deep violet 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 (280°, 67%, 32%) 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
#631b87
RGB
rgb(99, 27, 135)
HSL
hsl(280, 67%, 32%)
HWB
hwb(280 11% 47%)
OKLCH
oklch(39.5% 0.170 311.2)
P3
color(display-p3 0.3568 0.1270 0.5101)
HSV
hsv(280, 80%, 53%)
LAB
lab(27.26% 48.87 -45.21)
LCH
lch(27.26% 66.58 317.23)
CMYK
cmyk(27%, 80%, 0%, 47%)

Etymology

Saturnine
adjective

Latin Sāturnīnus, of Saturn — referring to the gloomy temperament associated with the planet Saturn in classical-and-Renaissance astrology. As a color modifier, saturnine implies a deep-and-cool-and-gloomy quality, the dark cool-gray of Hellebore-and-Lead alchemical-melancholic associations. Sits at the deep-and-cool end of the grid, parallel to sullen and gloomy.

Patchouli
noun

Asian Pogostemon cablin — an evergreen mint-family shrub native to Southeast Asia, cultivated for its essential-oil aromatic-leaf trade and bearing dense spikes of pale-violet labiate flowers. Patchouli color refers to a fully bloomed Pogostemon cablin spike on an Indonesian shamrock-leaf shrub: a saturated, slightly cool deep violet with the matte finish of dense small two-lipped patchouli corollas. The English name comes from the Tamil paccuḷ.

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.

#631b87
Original
#003d8a
Protanopia
#004285
Deuteranopia
#5e3551
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
10.31:1
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
2.04:1

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
##631B87
Display P3
Display P3
color(display-p3 0.3568 0.1270 0.5101)
P3 has subtle headroomOKLCH chroma 0.170

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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