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Smothering Stola

#420b59
Notes

Smothering Stola (#420B59) 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 (282°, 78%, 20%) 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
#420b59
RGB
rgb(66, 11, 89)
HSL
hsl(282, 78%, 20%)
HWB
hwb(282 4% 65%)
OKLCH
oklch(29.4% 0.131 313.0)
P3
color(display-p3 0.2359 0.0614 0.3356)
HSV
hsv(282, 88%, 35%)
LAB
lab(16.10% 37.98 -33.79)
LCH
lch(16.10% 50.83 318.34)
CMYK
cmyk(26%, 88%, 0%, 65%)

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.

Stola
noun

The Roman matron's long ceremonial robe — particularly the stola worn by Roman empresses and vestal virgins, often dyed in graduated Tyrian purple layers as a marker of social rank. Stola color refers to an imperial Roman Livia-period stola: a saturated, slightly cool deep violet with the matte finish of multi-bath Tyrian shellfish-dye on Roman wool. Distinct from the unmarried-woman tunica and the slave colobium.

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.

#420b59
Original
#00255b
Protanopia
#002957
Deuteranopia
#3f1f33
Tritanopia
#1c1c1c
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
14.75:1
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
1.42:1

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
##420B59
Display P3
Display P3
color(display-p3 0.2359 0.0614 0.3356)
P3 has subtle headroomOKLCH chroma 0.131

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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