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Bleak Dianthus

#640157
Notes

Bleak Dianthus (#640157) 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 (308°, 98%, 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
#640157
RGB
rgb(100, 1, 87)
HSL
hsl(308, 98%, 20%)
HWB
hwb(308 0% 61%)
OKLCH
oklch(34.5% 0.152 335.3)
P3
color(display-p3 0.3573 0.0563 0.3300)
HSV
hsv(308, 99%, 39%)
LAB
lab(21.65% 47.16 -23.18)
LCH
lch(21.65% 52.55 333.82)
CMYK
cmyk(0%, 99%, 13%, 61%)

Etymology

Bleak
adjective

Old Norse bleikr, pale — sharing root with English bleach. As a color modifier, bleak implies a deep-and-cold-and-comfortless quality, the dark gray-pale of Yorkshire-Moors and Hebrides late-winter atmospheric-light. Sits at the deep-and-cool end of the grid, parallel to grim and bitter in atmospheric register.

Dianthus
noun

Dianthus caryophyllus — the cultivated carnation of European florists' tradition, particularly the deep-magenta clove-pink cultivars whose spicy fragrance gave the carnation its eponymous Eugenia caryophyllata (clove tree) connection. Dianthus color refers to a fully opened Dianthus caryophyllus deep-magenta cultivar: a saturated, slightly cool deep magenta with the velvet finish of frilled petals around a calyx-throat. Greek Diós-anthos (god-flower).

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.

#640157
Original
#012b59
Protanopia
#2c3955
Deuteranopia
#6a0e30
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
12.47:1
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
1.68:1

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
##640157
Display P3
Display P3
color(display-p3 0.3573 0.0563 0.3300)
P3 has subtle headroomOKLCH chroma 0.152

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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