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Dyed Zànglán

#023991
Notes

Dyed Zànglán (#023991) is a deep azure 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 (217°, 97%, 29%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#023991
RGB
rgb(2, 57, 145)
HSL
hsl(217, 97%, 29%)
HWB
hwb(217 1% 43%)
OKLCH
oklch(37.6% 0.155 260.5)
HSV
hsv(217, 99%, 57%)
LAB
lab(26.69% 21.50 -52.67)
LCH
lch(26.69% 56.89 292.20)
CMYK
cmyk(99%, 61%, 0%, 43%)

Etymology

Dyed
adjective

Old English dēag, dye — past-participle of dye. As a color modifier, dyed implies a hue produced by deliberate textile-coloration in multi-bath fermentation-or-mordant-fixation processes, distinguished from natural-or-incidental color. Sits at the deep-and-pigmented end of the grid, parallel to stained and pigmented in usage.

Zànglán
noun

Chinese zànglán (藏蓝) — Tibetan blue or storage blue, the saturated deep blue of Tibetan-Buddhist monastery wall paint and Tibetan textile dye. The color refers to a zànglán-painted Lhasa monastery interior: a saturated, slightly cool deep blue with the matte finish of mineral-pigment-on-plaster.

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.

#023991
Original
#004594
Protanopia
#00398f
Deuteranopia
#00505f
Tritanopia
#343434
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
10.52:1
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
2.00:1

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