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Caliginous Goji

#310b26
Notes

Caliginous Goji (#310B26) is a deep magenta 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 (317°, 63%, 12%) 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
#310b26
RGB
rgb(49, 11, 38)
HSL
hsl(317, 63%, 12%)
HWB
hwb(317 4% 81%)
OKLCH
oklch(22.7% 0.072 341.0)
P3
color(display-p3 0.1750 0.0535 0.1447)
HSV
hsv(317, 78%, 19%)
LAB
lab(9.26% 22.81 -8.70)
LCH
lch(9.26% 24.41 339.12)
CMYK
cmyk(0%, 78%, 22%, 81%)

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.

Goji
noun

Chinese Lycium barbarum (枸杞) — a Solanaceae shrub native to the Ningxia region of north-central China, whose deep-magenta drupes have been used in Traditional Chinese Medicine for two millennia. Goji color refers to a freshly dried Lycium barbarum drupe-cluster on a Ningxia sun-drying mat: a saturated, slightly cool deep magenta with the matte finish of carotenoid-and-anthocyanin-rich dried-fruit skin.

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.

#310b26
Original
#0e1627
Protanopia
#191c25
Deuteranopia
#340c17
Tritanopia
#151515
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
17.41:1
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
1.21:1

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
##310B26
Display P3
Display P3
color(display-p3 0.1750 0.0535 0.1447)
Inside sRGBOKLCH chroma 0.072

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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