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Shadowy Hesperis

#630688
Notes

Shadowy Hesperis (#630688) is a deep violet with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (283°, 92%, 28%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#630688
RGB
rgb(99, 6, 136)
HSL
hsl(283, 92%, 28%)
HWB
hwb(283 2% 47%)
OKLCH
oklch(38.3% 0.187 312.1)
P3
color(display-p3 0.3541 0.0693 0.5132)
HSV
hsv(283, 96%, 53%)
LAB
lab(25.44% 54.65 -48.78)
LCH
lch(25.44% 73.25 318.24)
CMYK
cmyk(27%, 96%, 0%, 47%)

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.

Hesperis
noun

Eurasian Dame's rocket (Hesperis matronalis) — an evening-fragrant Brassicaceae perennial whose deep-violet four-petaled flowers naturalized across European hedgerows since the Roman era. Hesperis color refers to a fully bloomed Hesperis matronalis terminal raceme: a saturated, slightly cool deep violet with the velvet finish of fresh four-petaled flowers. The genus name comes from the Greek hespéra (evening), after the dusk-fragrance peak.

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.

#630688
Original
#00388b
Protanopia
#003e86
Deuteranopia
#5e2f4e
Tritanopia
#232323
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
10.98:1
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
1.91:1

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
##630688
Display P3
Display P3
color(display-p3 0.3541 0.0693 0.5132)
P3 has visible headroomOKLCH chroma 0.187

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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