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Polished Welkin

#90b5db
Notes

Polished Welkin (#90B5DB) is a soft 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 (210°, 51%, 71%) places it in the balanced band at a light lightness. It works as a background wash, large-area fill, or soft illustration tone. Add a darker ink of the same hue when you need type over it. For a confident two-color system, pair it with its complementary orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#90b5db
RGB
rgb(144, 181, 219)
HSL
hsl(210, 51%, 71%)
HWB
hwb(210 56% 14%)
OKLCH
oklch(76.0% 0.068 249.4)
P3
color(display-p3 0.5939 0.7056 0.8452)
HSV
hsv(210, 34%, 86%)
LAB
lab(72.29% -3.35 -23.11)
LCH
lch(72.29% 23.36 261.75)
CMYK
cmyk(34%, 17%, 0%, 14%)

Etymology

Polished
adjective

Latin polīre, to polish — past-participle of polish. As a color modifier, polished implies a clear-and-smooth-and-glossy quality where the hue carries the visual register of buffed-and-burnished smooth-finish surface. Sits at the crisp-and-finished end of the grid, parallel to burnished and gleaming in usage.

Welkin
noun

The archaic English word for sky or cloud-vault — used in Old English religious literature, Shakespeare's Henry V ("the welkin's vicegerent and sole dominator"), and the Scottish ballad tradition. Welkin color refers to the sky in poetic register: a saturated, slightly cool deep blue with the optical brightness of clean atmosphere.

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.

#90b5db
Original
#a6b6dd
Protanopia
#9daeda
Deuteranopia
#78bec1
Tritanopia
#b0b0b0
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).
Failon White
2.14:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
9.82:1

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
##90B5DB
Display P3
Display P3
color(display-p3 0.5939 0.7056 0.8452)
Inside sRGBOKLCH chroma 0.068

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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