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Shadowy Kyomurasaki

#51297e
Notes

Shadowy Kyomurasaki (#51297E) is a deep indigo 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 (268°, 51%, 33%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#51297e
RGB
rgb(81, 41, 126)
HSL
hsl(268, 51%, 33%)
HWB
hwb(268 16% 51%)
OKLCH
oklch(38.0% 0.138 301.8)
P3
color(display-p3 0.2967 0.1687 0.4766)
HSV
hsv(268, 67%, 49%)
LAB
lab(26.28% 36.44 -41.27)
LCH
lch(26.28% 55.06 311.45)
CMYK
cmyk(36%, 67%, 0%, 51%)

Etymology

Shadowy
adjective

Old English sceaduwig, full of shadow — adjectival form of shadow. As a color modifier, shadowy implies a deep-and-obscured quality where the hue is partially-occluded by intervening shade. Sits at the deep-and-veiled end of the grid, parallel to shaded and cloaked in usage.

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.

#51297e
Original
#003e81
Protanopia
#063e7c
Deuteranopia
#483c4f
Tritanopia
#383838
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
10.67:1
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
1.97:1

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
##51297E
Display P3
Display P3
color(display-p3 0.2967 0.1687 0.4766)
P3 has subtle headroomOKLCH chroma 0.138

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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