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Coolblue

Crisp Periwinkle Quartz

#837dce
Notes

Crisp Periwinkle Quartz (#837DCE) is a true blue 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 (244°, 45%, 65%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#837dce
RGB
rgb(131, 125, 206)
HSL
hsl(244, 45%, 65%)
HWB
hwb(244 49% 19%)
OKLCH
oklch(62.9% 0.120 285.8)
HSV
hsv(244, 39%, 81%)
LAB
lab(56.04% 21.52 -41.16)
LCH
lch(56.04% 46.45 297.61)
CMYK
cmyk(36%, 39%, 0%, 19%)

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.

#837dce
Original
#6389d1
Protanopia
#6184cc
Deuteranopia
#6f8c9c
Tritanopia
#848484
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
3.63:1
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
5.79:1

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