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Melancholic Kohbai

#664c5d
Notes

Melancholic Kohbai (#664C5D) is a true magenta with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (321°, 15%, 35%) places it in the muted band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#664c5d
RGB
rgb(102, 76, 93)
HSL
hsl(321, 15%, 35%)
HWB
hwb(321 30% 60%)
OKLCH
oklch(45.0% 0.043 339.7)
P3
color(display-p3 0.3843 0.3021 0.3610)
HSV
hsv(321, 25%, 40%)
LAB
lab(35.57% 14.09 -5.69)
LCH
lch(35.57% 15.19 338.01)
CMYK
cmyk(0%, 25%, 9%, 60%)

Etymology

Melancholic
adjective

Greek melan-cholē, black-bile — adjectival suffix -ic. As a color modifier, melancholic implies a hushed-and-sad-and-pensive quality where the hue carries the visual register of Dürer-Melencolia-I engraving-tradition pensive-and-thoughtful-mood color treatment. Sits at the hushed-and-melancholy end of the grid, parallel to wistful and pensive in usage.

Kohbai
noun

Japanese 紅梅, red plum-blossom (Prunus mume var. kohbai) — the deep-pink-flowered cultivar of Japanese plum, a traditional New Year color in Heian-period kasane no irome layered silks. Kohbai color refers to a fully bloomed kohbai plum branch in February: a saturated, slightly cool deep magenta with the velvet finish of fresh plum-blossom petals against bare branches in early-spring snow.

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.

#664c5d
Original
#4d515e
Protanopia
#53555c
Deuteranopia
#694c52
Tritanopia
#535353
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
7.62:1
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
2.76:1

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
##664C5D
Display P3
Display P3
color(display-p3 0.3843 0.3021 0.3610)
Inside sRGBOKLCH chroma 0.043

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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