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Coolblue

Deep Periwinkle Cloud

#978fd1
Notes

Deep Periwinkle Cloud (#978FD1) 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 (247°, 42%, 69%) 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
#978fd1
RGB
rgb(151, 143, 209)
HSL
hsl(247, 42%, 69%)
HWB
hwb(247 56% 18%)
OKLCH
oklch(68.2% 0.096 289.1)
HSV
hsv(247, 32%, 82%)
LAB
lab(62.36% 17.49 -32.83)
LCH
lch(62.36% 37.20 298.04)
CMYK
cmyk(28%, 32%, 0%, 18%)

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.

#978fd1
Original
#7d98d4
Protanopia
#7d95cf
Deuteranopia
#8a9ba7
Tritanopia
#959595
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
2.93:1
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
7.17:1

Related Colors

Canvas