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Princely Tibet

#31379d
Notes

Princely Tibet (#31379D) 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 (237°, 52%, 40%) 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
#31379d
RGB
rgb(49, 55, 157)
HSL
hsl(237, 52%, 40%)
HWB
hwb(237 19% 38%)
OKLCH
oklch(40.0% 0.163 273.8)
P3
color(display-p3 0.1966 0.2150 0.5929)
HSV
hsv(237, 69%, 62%)
LAB
lab(28.95% 31.73 -56.24)
LCH
lch(28.95% 64.57 299.43)
CMYK
cmyk(69%, 65%, 0%, 38%)

Etymology

Princely
adjective

Latin prīnceps, first / chief — adjectival suffix -ly. As a color modifier, princely implies a saturated-and-royal-secondary quality, the deep-rich color of European crown-prince coronet-and-livery vestment. Sits at the bold-and-aristocratic end of the grid, parallel to lordly and regal in usage.

Tibet
noun

The high-altitude plateau of central Asia — and the saturated deep blue of Tibetan prayer-flag (lung-ta) blue panels and the deep blue of Tibetan summer sky at 4,000-meter altitude. Tibet refers to a fresh Tibetan prayer-flag blue panel: a saturated, slightly cool deep blue with the matte finish of cotton-dyed prayer flag.

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.

#31379d
Original
#0049a0
Protanopia
#003f9b
Deuteranopia
#005165
Tritanopia
#3d3d3d
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
9.70:1
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
2.16:1

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
##31379D
Display P3
Display P3
color(display-p3 0.1966 0.2150 0.5929)
P3 has subtle headroomOKLCH chroma 0.163

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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