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Sinister Punch

#620b55
Notes

Sinister Punch (#620B55) 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 (309°, 80%, 21%) 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
#620b55
RGB
rgb(98, 11, 85)
HSL
hsl(309, 80%, 21%)
HWB
hwb(309 4% 62%)
OKLCH
oklch(34.6% 0.142 335.6)
HSV
hsv(309, 89%, 38%)
LAB
lab(21.92% 44.10 -21.45)
LCH
lch(21.92% 49.04 334.06)
CMYK
cmyk(0%, 89%, 13%, 62%)

Etymology

Sinister
adjective

Latin sinister, left / unlucky — used in classical-augury for the unfavorable left-hand-side of bird-flight omen-reading. As a color modifier, sinister implies a deep-and-foreboding-and-uncanny quality, the dark of Gothic-novel atmospheric-shadow and threatening-presence. Sits at the deep-and-uncanny end of the grid, parallel to foreboding and menacing in atmospheric register.

Punch
noun

A bright pink-red color named for the surface of a fruit punch — particularly the Tahitian-style punches of mid-century cocktail culture and the brand-name Hawaiian Punch whose color was a signature. The color refers to a saturated, slightly cool red-pink: brighter than fuchsia, warmer than rose, with the mid-century-tropical weight of a color tied to a specific decade of American cookout entertaining.

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

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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.

#620b55
Original
#0c2c57
Protanopia
#2e3953
Deuteranopia
#671431
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
12.36:1
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
1.70:1

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