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Shadowed Tibouchina

#310c49
Notes

Shadowed Tibouchina (#310C49) 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 (276°, 72%, 17%) 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
#310c49
RGB
rgb(49, 12, 73)
HSL
hsl(276, 72%, 17%)
HWB
hwb(276 5% 71%)
OKLCH
oklch(25.4% 0.107 308.0)
P3
color(display-p3 0.1753 0.0568 0.2750)
HSV
hsv(276, 84%, 29%)
LAB
lab(11.94% 30.24 -29.73)
LCH
lch(11.94% 42.41 315.49)
CMYK
cmyk(33%, 84%, 0%, 71%)

Etymology

Shadowed
adjective

The past participle of shadow, used adjectivally for a color that reads as if partially in shadow rather than fully lit. Implies the slight darkening and cooling that any color undergoes when light is reduced — not the absence of color but the muting of it. Sits in the deep-and-cool end of the engine's grid, lighter than inky and warmer than somber.

Tibouchina
noun

South American princess flower (Tibouchina urvilleana) — a Brazilian cerrado native shrub cultivated worldwide for its silver-veined leaves and deep-violet five-petaled flowers. Tibouchina color refers to a fully bloomed Tibouchina urvilleana corolla: a saturated, slightly cool deep violet with the velvet finish of fresh broad-petaled corolla. The genus name is from the Tupi-Guarani native word for the plant.

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.

#310c49
Original
#001e4b
Protanopia
#002048
Deuteranopia
#2d1b2a
Tritanopia
#181818
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
16.41:1
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
1.28:1

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
##310C49
Display P3
Display P3
color(display-p3 0.1753 0.0568 0.2750)
P3 has subtle headroomOKLCH chroma 0.107

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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