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Charred Sumire

#1c0b3f
Notes

Charred Sumire (#1C0B3F) is a deep indigo 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 (260°, 70%, 15%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1c0b3f
RGB
rgb(28, 11, 63)
HSL
hsl(260, 70%, 15%)
HWB
hwb(260 4% 75%)
OKLCH
oklch(21.4% 0.092 291.6)
HSV
hsv(260, 83%, 25%)
LAB
lab(7.63% 23.42 -29.84)
LCH
lch(7.63% 37.93 308.13)
CMYK
cmyk(56%, 83%, 0%, 75%)

Etymology

Charred
adjective

The past participle of char, to burn slightly — and a color word for surfaces that have been heat-blackened without fully consuming. Charred implies the carbon-blackened skin of grilled meat, fired wood, or smoke-darkened cathedral stone. Sits in the deep-and-near-black end of the engine's grid, slightly drier than inky and warmer than somber.

Sumire
noun

The Japanese violet Viola mandshurica — a wild perennial that blooms in early spring across Japanese mountainsides and roadsides, a national symbol of modesty in classical waka poetry. Sumire color refers to a freshly opened Viola mandshurica petal: a saturated, slightly cool deep blue-violet with the velvet finish of fresh viola petals. The pigment is anthocyanin in the petal cells.

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.

#1c0b3f
Original
#001841
Protanopia
#00163e
Deuteranopia
#111924
Tritanopia
#121212
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
17.96:1
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
1.17:1

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