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Pure Kashmir

#437fdd
Notes

Pure Kashmir (#437FDD) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (217°, 69%, 56%) 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
#437fdd
RGB
rgb(67, 127, 221)
HSL
hsl(217, 69%, 56%)
HWB
hwb(217 26% 13%)
OKLCH
oklch(60.3% 0.156 259.1)
P3
color(display-p3 0.3206 0.4924 0.8405)
HSV
hsv(217, 70%, 87%)
LAB
lab(53.59% 11.40 -53.74)
LCH
lch(53.59% 54.93 281.98)
CMYK
cmyk(70%, 43%, 0%, 13%)

Etymology

Pure
adjective

Latin purus, clean, unmixed — applied to color since antiquity for hues that contain only one pigment without dilution by white, black, or another color. Pure red is the textbook ideal: high saturation, mid lightness, no shift. Sits at the bold-bucket center, parallel to true and strong.

Kashmir
noun

The northwestern Indian-Pakistani Himalayan region — and the saturated deep blue of Kashmir sapphires (the world's most prized sapphire variety, mined in the Padar valley). Kashmir color refers to a faceted Kashmir sapphire: a saturated, slightly violet-shifted deep blue with the gem's signature internal velvet.

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.

#437fdd
Original
#5288e1
Protanopia
#3779db
Deuteranopia
#0095a3
Tritanopia
#797979
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).
AA Largeon White
3.95:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.32:1

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
##437FDD
Display P3
Display P3
color(display-p3 0.3206 0.4924 0.8405)
P3 has subtle headroomOKLCH chroma 0.156

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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