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Voluptuous Buffed Ultramarine

#3251cc
Notes

Voluptuous Buffed Ultramarine (#3251CC) 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 (228°, 61%, 50%) 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
#3251cc
RGB
rgb(50, 81, 204)
HSL
hsl(228, 61%, 50%)
HWB
hwb(228 20% 20%)
OKLCH
oklch(49.0% 0.194 267.6)
HSV
hsv(228, 75%, 80%)
LAB
lab(39.45% 32.12 -66.92)
LCH
lch(39.45% 74.23 295.64)
CMYK
cmyk(75%, 60%, 0%, 20%)

Etymology

Voluptuous
adjective

Latin voluptuōsus, pleasurable — derived from voluptās (pleasure). As a color modifier, voluptuous implies a saturated-and-rich-and-curving-sensual quality, the deep-rich color of Rubens-and-Boucher baroque-and-rococo flesh-and-fabric tonality. Sits at the bold-and-saturated end of the grid, parallel to lush and plush in tone.

Buffed
modifier

Old French buffer, to-puff. As a color modifier, buffed implies a polished-and-shined quality, the visual register of Sheffield-and-Renaissance-buffed-and-polished hand-buffed-and-polished metal-and-leather-and-wood Sheffield-and-Renaissance-buffed-and-polished surfaces under Sheffield-and-Renaissance hand-buffed-and-polished workshop-light. Sits at the modifier-and-texture end of the grid, parallel to honed and gloss in usage.

Ultramarine
noun

The pigment ground from lapis lazuli — the Afghan mineral imported through Venice in the late Middle Ages, more expensive by weight than gold during the Renaissance. The color refers to a freshly mixed ultramarine pigment in linseed oil: a saturated, slightly violet-shifted deep blue with the matte finish of micron-ground rock. Deeper than cobalt, cooler than royal, with the art-historical weight of the blue Vermeer reserved for Mary's robe.

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.

#3251cc
Original
#0064d0
Protanopia
#0056ca
Deuteranopia
#007087
Tritanopia
#535353
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
6.59:1
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
3.18:1

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