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Devout Riebeckite

#3152a1
Notes

Devout Riebeckite (#3152A1) is a true azure 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 (222°, 53%, 41%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#3152a1
RGB
rgb(49, 82, 161)
HSL
hsl(222, 53%, 41%)
HWB
hwb(222 19% 37%)
OKLCH
oklch(45.8% 0.134 264.6)
P3
color(display-p3 0.2216 0.3182 0.6107)
HSV
hsv(222, 70%, 63%)
LAB
lab(36.48% 15.33 -46.44)
LCH
lch(36.48% 48.90 288.27)
CMYK
cmyk(70%, 49%, 0%, 37%)

Etymology

Devout
adjective

From the Latin devotus, consecrated — used principally in religious contexts for the dignified deep colors of sacred art and ecclesiastical dress. As a color modifier, devout implies saturation combined with restraint: the deep blues of Marian mantles, the deep reds of cardinals' robes. Sits in the bold-and-formal corner alongside imperial.

Riebeckite
noun

A sodium-iron amphibole — the source of crocidolite (blue asbestos) and the chatoyant inclusions in hawk's-eye quartz. Mined principally in South Africa and Australia. The color refers to a freshly cleaved riebeckite specimen: a deep, slightly cool dark blue-gray with the slight metallic shine of amphibole.

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.

#3152a1
Original
#275ba4
Protanopia
#09519f
Deuteranopia
#006472
Tritanopia
#515151
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
7.36:1
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
2.85:1

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
##3152A1
Display P3
Display P3
color(display-p3 0.2216 0.3182 0.6107)
P3 has subtle headroomOKLCH chroma 0.134

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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