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Suffused Lupin

#273588
Notes

Suffused Lupin (#273588) is a deep blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (231°, 55%, 34%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#273588
RGB
rgb(39, 53, 136)
HSL
hsl(231, 55%, 34%)
HWB
hwb(231 15% 47%)
OKLCH
oklch(37.2% 0.139 270.8)
HSV
hsv(231, 71%, 53%)
LAB
lab(26.02% 23.88 -48.12)
LCH
lch(26.02% 53.72 296.39)
CMYK
cmyk(71%, 61%, 0%, 47%)

Etymology

Suffused
adjective

Latin suffundere, to pour beneath — past-participle of suffuse. As a color modifier, suffused implies a deep-saturation-and-warmth where the hue has been infused with pigment from within. Sits at the deep-and-saturated end of the grid, parallel to infused and warmer than drenched.

Lupin
noun

The genus Lupinus — North American and European legumes whose tall blue-violet flower spikes appear in alpine meadows and cottage borders. The Latin lupus, wolf, references the old (incorrect) belief that the plant depleted soil. The color refers to a fresh blue lupin spike: a saturated, slightly violet-shifted blue with the matte finish of stacked pea-family flowers. Cooler than larkspur, warmer than wisteria, with the high-meadow weight of a perennial that tolerates poor soil.

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.

#273588
Original
#00428b
Protanopia
#003986
Deuteranopia
#004a59
Tritanopia
#383838
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
10.76:1
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
1.95:1

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