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Subterranean Glicine

#2f2b8b
Notes

Subterranean Glicine (#2F2B8B) is a true 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°, 53%, 36%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#2f2b8b
RGB
rgb(47, 43, 139)
HSL
hsl(243, 53%, 36%)
HWB
hwb(243 17% 45%)
OKLCH
oklch(36.1% 0.153 277.3)
P3
color(display-p3 0.1816 0.1692 0.5244)
HSV
hsv(243, 69%, 55%)
LAB
lab(24.31% 32.75 -52.77)
LCH
lch(24.31% 62.11 301.82)
CMYK
cmyk(66%, 69%, 0%, 45%)

Etymology

Subterranean
adjective

Latin sub-terraneus, under-ground. As a color modifier, subterranean implies the cool deep darkness of cave-and-tunnel interiors where ambient daylight has been completely eliminated. Sits at the deep-and-cool end of the grid, where the hue reads as cellar-dwelling rather than night-sky deep.

Glicine
noun

Italian for Wisteria sinensis, the cascading purple-violet flowering vine introduced from China to European gardens in 1816. Glicine color refers to a fully bloomed Glicine raceme on a Tuscan pergola: a saturated, slightly cool deep blue-violet with the velvet finish of dense pendulous wisteria racemes. Stocks as a fashion-color name in early-20th-century Italian millinery and Liberty-style enamels.

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.

#2f2b8b
Original
#003e8e
Protanopia
#003689
Deuteranopia
#004457
Tritanopia
#333333
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
11.42:1
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
1.84:1

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
##2F2B8B
Display P3
Display P3
color(display-p3 0.1816 0.1692 0.5244)
P3 has subtle headroomOKLCH chroma 0.153

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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