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Dark Chionodoxa

#2d175c
Notes

Dark Chionodoxa (#2D175C) is a deep indigo 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 (259°, 60%, 23%) 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
#2d175c
RGB
rgb(45, 23, 92)
HSL
hsl(259, 60%, 23%)
HWB
hwb(259 9% 64%)
OKLCH
oklch(28.2% 0.116 291.9)
P3
color(display-p3 0.1645 0.0943 0.3467)
HSV
hsv(259, 75%, 36%)
LAB
lab(15.19% 29.02 -37.43)
LCH
lch(15.19% 47.36 307.78)
CMYK
cmyk(51%, 75%, 0%, 64%)

Etymology

Dark
adjective

Old English deorc, dark, gloomy — cognate with the German dunkel and the Latin terra, earth, both pointing to a base meaning of covered or obscured. As a color modifier, dark sits on the lightness axis only: it says nothing about hue or saturation, only that the value is low. Used across every adjective bucket the engine routes to when L < 0.40.

Chionodoxa
noun

Mediterranean Glory-of-the-Snow (Chionodoxa luciliae) — a small Anatolian-mountain spring-flowering bulb whose name combines Greek khión (snow) and dóxa (glory). Chionodoxa color refers to a freshly opened Chionodoxa luciliae six-tepalled star: a saturated, slightly cool deep blue-violet with the velvet finish of small radiating tepals around a paler center. Blooms while alpine snow lingers in patches.

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.

#2d175c
Original
#00275e
Protanopia
#00255b
Deuteranopia
#1e2937
Tritanopia
#212121
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
15.12:1
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
1.39:1

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
##2D175C
Display P3
Display P3
color(display-p3 0.1645 0.0943 0.3467)
P3 has subtle headroomOKLCH chroma 0.116

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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