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Cavalier Crocus

#b21da5
Notes

Cavalier Crocus (#B21DA5) is a true violet with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (305°, 72%, 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b21da5
RGB
rgb(178, 29, 165)
HSL
hsl(305, 72%, 41%)
HWB
hwb(305 11% 30%)
OKLCH
oklch(53.7% 0.225 332.4)
P3
color(display-p3 0.6409 0.1780 0.6271)
HSV
hsv(305, 84%, 70%)
LAB
lab(42.86% 69.17 -37.79)
LCH
lch(42.86% 78.82 331.35)
CMYK
cmyk(0%, 84%, 7%, 30%)

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.

Crocus
noun

The genus Crocus — small autumn or spring corms that flower before their leaves emerge, push through snow in March, and include C. sativus, the source of saffron. The color refers to a fresh blue-violet spring crocus: a saturated, slightly violet-shifted deep blue with the satiny finish of a six-petaled cup catching morning light. Cooler than amethyst, warmer than iris, with the seasonal weight of a flower that arrives weeks before everything else.

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.

#b21da5
Original
#0c58a8
Protanopia
#546ca2
Deuteranopia
#ba3263
Tritanopia
#464646
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).
AAon White
5.81:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.61:1

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
##B21DA5
Display P3
Display P3
color(display-p3 0.6409 0.1780 0.6271)
P3 has visible headroomOKLCH chroma 0.225

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

Canvas