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Starched Cassis

#63326b
Notes

Starched Cassis (#63326B) is a deep violet with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (292°, 36%, 31%) 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
#63326b
RGB
rgb(99, 50, 107)
HSL
hsl(292, 36%, 31%)
HWB
hwb(292 20% 58%)
OKLCH
oklch(40.5% 0.108 321.8)
P3
color(display-p3 0.3628 0.2059 0.4077)
HSV
hsv(292, 53%, 42%)
LAB
lab(29.40% 31.69 -24.07)
LCH
lch(29.40% 39.80 322.78)
CMYK
cmyk(7%, 53%, 0%, 58%)

Etymology

Starched
adjective

Old English stercan, to stiffen — past-participle of starch. As a color modifier, starched implies a clear-and-stiff-and-formal quality, the crisp color of Edwardian-period formal-evening-shirt-and-collar starched-and-pressed dress-attire. Sits at the crisp-and-finished end of the grid, parallel to pressed and ironed in usage.

Cassis
noun

French for blackcurrant (Ribes nigrum) — the deep-violet drupe used in Burgundian Crème de Cassis liqueur and Kir aperitif. Cassis color refers to a freshly macerated Ribes nigrum drupe-pulp in a Burgundian Crème de Cassis base: a saturated, slightly cool deep violet with the matte finish of anthocyanin-rich blackcurrant juice. Slightly warmer than Cabernet-style table wine.

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.

#63326b
Original
#29426d
Protanopia
#384769
Deuteranopia
#643949
Tritanopia
#414141
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
9.55:1
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
2.20:1

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
##63326B
Display P3
Display P3
color(display-p3 0.3628 0.2059 0.4077)
P3 has subtle headroomOKLCH chroma 0.108

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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