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Punchy Zànglán

#4470d2
Notes

Punchy Zànglán (#4470D2) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (221°, 61%, 55%) places it in the balanced 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4470d2
RGB
rgb(68, 112, 210)
HSL
hsl(221, 61%, 55%)
HWB
hwb(221 27% 18%)
OKLCH
oklch(56.5% 0.159 263.9)
HSV
hsv(221, 68%, 82%)
LAB
lab(48.84% 16.93 -55.11)
LCH
lch(48.84% 57.65 287.08)
CMYK
cmyk(68%, 47%, 0%, 18%)

Etymology

Punchy
adjective

A modern adjectival form of punch, to strike sharply. Used as a color word since the early twentieth century for hues that read as highly contrasting and visually loud. Punchy red, punchy yellow: the implication is full saturation combined with optical impact. Sits across the bold and bright buckets, near vivid and striking.

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

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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.

#4470d2
Original
#3d7bd6
Protanopia
#1f6ed0
Deuteranopia
#008797
Tritanopia
#6e6e6e
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).
AAon White
4.67:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.49:1

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