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Sooty Vasilek

#2b3385
Notes

Sooty Vasilek (#2B3385) is a true 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 (235°, 51%, 35%) 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
#2b3385
RGB
rgb(43, 51, 133)
HSL
hsl(235, 51%, 35%)
HWB
hwb(235 17% 48%)
OKLCH
oklch(36.7% 0.136 273.4)
HSV
hsv(235, 68%, 52%)
LAB
lab(25.49% 24.73 -47.12)
LCH
lch(25.49% 53.21 297.69)
CMYK
cmyk(68%, 62%, 0%, 48%)

Etymology

Sooty
adjective

Old English sōt, soot — adjectival suffix -y. As a color modifier, sooty implies the deep-matte-black quality of multi-decade chimney-and-furnace soot-and-creosote-residue surfaces, the Brontë-period Yorkshire-cottage hearth-and-flue patina. Sits at the deep-and-warm end of the grid, parallel to smoky and pitchy.

Vasilek
noun

The Russian word for cornflower (Centaurea cyanus) — and the saturated bright blue of cornflower fields among Russian wheat. Vasilek-blue is the unifying field-flower color of Russian rural summer. The color refers to a fresh cornflower at peak bloom in a Russian wheat field: a saturated, slightly cool bright blue.

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.

#2b3385
Original
#004188
Protanopia
#003883
Deuteranopia
#004757
Tritanopia
#373737
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
10.97:1
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
1.91:1

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