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Caliginous Mussaenda

#63157e
Notes

Caliginous Mussaenda (#63157E) 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 (285°, 71%, 29%) 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
#63157e
RGB
rgb(99, 21, 126)
HSL
hsl(285, 71%, 29%)
HWB
hwb(285 8% 51%)
OKLCH
oklch(38.3% 0.168 315.2)
P3
color(display-p3 0.3558 0.1085 0.4762)
HSV
hsv(285, 83%, 49%)
LAB
lab(25.85% 49.01 -41.83)
LCH
lch(25.85% 64.44 319.52)
CMYK
cmyk(21%, 83%, 0%, 51%)

Etymology

Caliginous
adjective

Latin cālīginōsus, misty / dark — derived from cālīgō (mist, gloom). As a color modifier, caliginous implies an obscured, dimmed, slightly-cool-shifted quality where the hue is veiled by darkness or atmospheric fog. Sits at the deep-and-veiled end of the grid, between murky and tenebrous in usage.

Mussaenda
noun

Asian Mussaenda philippica — a tropical shrub cultivated worldwide as a garden plant for its enlarged leaf-like bracts surrounding small inconspicuous flowers. Mussaenda color refers to a fully developed Mussaenda philippica bract-cluster: a saturated, slightly cool deep violet with the matte finish of leaf-tissue anthocyanin-rich modified sepals. The Sinhalese name mussaenda refers to the bract-and-flower structure.

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.

#63157e
Original
#003981
Protanopia
#0f3f7c
Deuteranopia
#612f4a
Tritanopia
#2d2d2d
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
10.83:1
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

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
##63157E
Display P3
Display P3
color(display-p3 0.3558 0.1085 0.4762)
P3 has subtle headroomOKLCH chroma 0.168

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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