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Caliginous Lavanda

#231f68
Notes

Caliginous Lavanda (#231F68) is a deep blue 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 (243°, 54%, 26%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#231f68
RGB
rgb(35, 31, 104)
HSL
hsl(243, 54%, 26%)
HWB
hwb(243 12% 59%)
OKLCH
oklch(29.7% 0.123 278.3)
P3
color(display-p3 0.1346 0.1221 0.3920)
HSV
hsv(243, 70%, 41%)
LAB
lab(17.16% 26.22 -42.18)
LCH
lch(17.16% 49.67 301.87)
CMYK
cmyk(66%, 70%, 0%, 59%)

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.

Lavanda
noun

Italian and Spanish for lavender (Lavandula angustifolia) — derived from Latin lavare, to wash, after the Roman use of lavender in bathwater. Lavanda color refers to a freshly cut Provençal lavanda sprig: a saturated, slightly cool deep blue-violet with the matte finish of essential-oil-rich lavender bracts. Cooler than English lavender, which trends paler and grayer.

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.

#231f68
Original
#002d6a
Protanopia
#002767
Deuteranopia
#003240
Tritanopia
#252525
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
14.31:1
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
1.47:1

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
##231F68
Display P3
Display P3
color(display-p3 0.1346 0.1221 0.3920)
P3 has subtle headroomOKLCH chroma 0.123

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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