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Cavalier Coronet

#373897
Notes

Cavalier Coronet (#373897) 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 (239°, 47%, 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
#373897
RGB
rgb(55, 56, 151)
HSL
hsl(239, 47%, 40%)
HWB
hwb(239 22% 41%)
OKLCH
oklch(40.1% 0.152 276.6)
HSV
hsv(239, 64%, 59%)
LAB
lab(29.09% 29.87 -52.33)
LCH
lch(29.09% 60.26 299.72)
CMYK
cmyk(64%, 63%, 0%, 41%)

Etymology

Cavalier
adjective

Italian cavaliere, horseman / knight via Latin caballārius. As a color modifier, cavalier implies a saturated-and-chivalrous-and-aristocratic quality, the deep-rich color of English-Civil-War royalist Cavalier military-faction velvet-and-lace-and-feathered-hat livery. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and knightly.

Coronet
noun

Old French coronete, little crown — a small ornamental crown worn by lower-rank European nobility (dukes, earls, viscounts, barons) and Crown Princes of Britain. The coronet of an English duke is set with deep-blue sapphire. Coronet color refers to an English duke's coronet with its sapphire alternation: a saturated, slightly cool deep blue-violet with the glassy finish of polished Ceylon sapphire on gilt metal.

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.

#373897
Original
#00499a
Protanopia
#004095
Deuteranopia
#005062
Tritanopia
#3f3f3f
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
9.66:1
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
2.17:1

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