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Smothering Polygala

#631255
Notes

Smothering Polygala (#631255) is a deep magenta 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 (310°, 69%, 23%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#631255
RGB
rgb(99, 18, 85)
HSL
hsl(310, 69%, 23%)
HWB
hwb(310 7% 61%)
OKLCH
oklch(35.3% 0.136 336.3)
P3
color(display-p3 0.3553 0.0998 0.3232)
HSV
hsv(310, 82%, 39%)
LAB
lab(22.80% 42.36 -20.05)
LCH
lch(22.80% 46.87 334.67)
CMYK
cmyk(0%, 82%, 14%, 61%)

Etymology

Smothering
adjective

Old English smorian, to suffocate — present-participle of smother. As a color modifier, smothering implies a deep-and-overwhelming-and-pressing quality where the hue is dominated by an enveloping darkness. Sits at the deep-and-overwhelming end of the grid, parallel to suffocating with kinetic register.

Polygala
noun

Eurasian milkwort (Polygala myrtifolia) — a Polygalaceae evergreen shrub native to South Africa cultivated worldwide as a Mediterranean garden plant for its deep-magenta keel-shaped flowers in axial racemes. Polygala color refers to a fully bloomed Polygala myrtifolia keel-flower on a Cape Floristic Region shrub: a saturated, slightly cool deep magenta with the velvet finish of fresh keel-shaped legume-form flower. The Greek poly-gala means much milk.

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.

#631255
Original
#142f57
Protanopia
#313b53
Deuteranopia
#691832
Tritanopia
#282828
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
12.01:1
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
1.75:1

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
##631255
Display P3
Display P3
color(display-p3 0.3553 0.0998 0.3232)
P3 has subtle headroomOKLCH chroma 0.136

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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