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Knightly Kyomurasaki

#b21da7
Notes

Knightly Kyomurasaki (#B21DA7) 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 (304°, 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
#b21da7
RGB
rgb(178, 29, 167)
HSL
hsl(304, 72%, 41%)
HWB
hwb(304 11% 30%)
OKLCH
oklch(53.9% 0.226 331.7)
P3
color(display-p3 0.6409 0.1780 0.6345)
HSV
hsv(304, 84%, 70%)
LAB
lab(42.97% 69.46 -38.81)
LCH
lch(42.97% 79.57 330.81)
CMYK
cmyk(0%, 84%, 6%, 30%)

Etymology

Knightly
adjective

Old English cniht, young man / knight — adjectival suffix -ly. As a color modifier, knightly implies a saturated-and-chivalrous-and-medieval quality, the deep-rich color of medieval-English-and-French knight-and-squire armorial-bearings-and-livery tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and cavalier.

Kyomurasaki
noun

Kyoto purple (京紫) — the warmer red-tinted purple of the Heian-period imperial court at Kyoto, distinguished from the cooler Edo-period edomurasaki. Kyomurasaki color refers to a Kyoto-court ceremonial kariginu hunting robe: a saturated, slightly cool deep violet with the silk luster of multi-bath gromwell-root-and-akane (madder) dye on woven silk crepe. Slightly warmer than Edomurasaki.

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.

#b21da7
Original
#0559aa
Protanopia
#536ca4
Deuteranopia
#ba3364
Tritanopia
#474747
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
5.79:1
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
3.63:1

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
##B21DA7
Display P3
Display P3
color(display-p3 0.6409 0.1780 0.6345)
P3 has visible headroomOKLCH chroma 0.226

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.

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