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Velvety Tradescantia

#2748a4
Notes

Velvety Tradescantia (#2748A4) is a true 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 (224°, 62%, 40%) 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
#2748a4
RGB
rgb(39, 72, 164)
HSL
hsl(224, 62%, 40%)
HWB
hwb(224 15% 36%)
OKLCH
oklch(43.4% 0.154 265.4)
HSV
hsv(224, 76%, 64%)
LAB
lab(33.45% 21.74 -53.16)
LCH
lch(33.45% 57.43 292.25)
CMYK
cmyk(76%, 56%, 0%, 36%)

Etymology

Velvety
adjective

An adjectival form of velvet, used since the eighteenth century for colors that read as if they had the matte light-absorbing quality of velvet. Implies high saturation combined with a non-glossy surface — the matte richness of a deep wine in a fabric rather than in a glass. Sits in the bold-and-deep corner of the grid alongside plush and lush.

Tradescantia
noun

The genus Tradescantiaspiderworts, North American native perennials with three-petaled saturated blue or violet flowers that close by midday. Named for John Tradescant, gardener to King Charles I. The color refers to a fresh T. virginiana bloom: a saturated, slightly cool deep blue-violet with the satin finish of three-petaled morning bloom.

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.

#2748a4
Original
#0055a7
Protanopia
#0049a2
Deuteranopia
#005f6f
Tritanopia
#484848
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).
AAAon White
8.24:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.55:1

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