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Caliginous Liriope

#331756
Notes

Caliginous Liriope (#331756) is a deep indigo 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 (267°, 58%, 21%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#331756
RGB
rgb(51, 23, 86)
HSL
hsl(267, 58%, 21%)
HWB
hwb(267 9% 66%)
OKLCH
oklch(28.3% 0.108 299.8)
P3
color(display-p3 0.1854 0.0958 0.3244)
HSV
hsv(267, 73%, 34%)
LAB
lab(15.43% 28.49 -32.97)
LCH
lch(15.43% 43.57 310.83)
CMYK
cmyk(41%, 73%, 0%, 66%)

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.

Liriope
noun

Asian lily turf (Liriope muscari) — an East-Asian Asparagaceae groundcover with vertical spikes of deep-violet beadlike flowers above grass-like foliage in late summer. Liriope color refers to a fully bloomed Liriope muscari spike: a saturated, slightly cool deep violet with the matte finish of fresh small beadlike flowers. Named for the Liríopē river-nymph of Greek mythology, mother of Narcissus.

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.

#331756
Original
#002658
Protanopia
#002655
Deuteranopia
#2b2634
Tritanopia
#222222
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
15.02:1
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
1.40:1

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
##331756
Display P3
Display P3
color(display-p3 0.1854 0.0958 0.3244)
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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