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Hefty Fairywren

#4255a6
Notes

Hefty Fairywren (#4255A6) 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 (229°, 43%, 45%) 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
#4255a6
RGB
rgb(66, 85, 166)
HSL
hsl(229, 43%, 45%)
HWB
hwb(229 26% 35%)
OKLCH
oklch(47.7% 0.132 270.8)
HSV
hsv(229, 60%, 65%)
LAB
lab(38.56% 18.24 -46.02)
LCH
lch(38.56% 49.50 291.62)
CMYK
cmyk(60%, 49%, 0%, 35%)

Etymology

Hefty
adjective

Old English hefig, heavy — adjectival suffix -y. As a color modifier, hefty implies a saturated-and-substantial-and-weighty quality where the hue carries the visual heft of a hand-cast pig-iron object. Sits at the bold-and-weighty end of the grid, parallel to substantial and weighty in usage.

Fairywren
noun

Australian Splendid Fairywren (Malurus splendens) — a small Maluridae passerine of arid southern Australia, whose breeding-plumage males are a luminous all-over violet-blue. Fairywren color refers to a breeding-plumage male Malurus splendens in mulga scrub: a saturated, slightly cool deep blue-violet with the iridescent satin finish of structurally colored feather barbs over melanin substrate. Among the most saturated naturally occurring blue-violets in vertebrate plumage.

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.

#4255a6
Original
#2d5fa9
Protanopia
#1b57a4
Deuteranopia
#006775
Tritanopia
#575757
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
6.81:1
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
3.08:1

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