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Hefty Stratus

#248adf
Notes

Hefty Stratus (#248ADF) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (207°, 75%, 51%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#248adf
RGB
rgb(36, 138, 223)
HSL
hsl(207, 75%, 51%)
HWB
hwb(207 14% 13%)
OKLCH
oklch(62.0% 0.156 249.2)
HSV
hsv(207, 84%, 87%)
LAB
lab(55.96% 1.97 -51.12)
LCH
lch(55.96% 51.16 272.21)
CMYK
cmyk(84%, 38%, 0%, 13%)

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.

Stratus
noun

The Latin meteorological term for layer cloud — the low, gray-blue overcast clouds that cover the entire sky in mid-latitude winters. Stratus refers to a fully developed stratus deck on a North Sea winter morning: a soft, slightly muted deep blue-gray with the optical density of homogeneous low cloud.

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.

#248adf
Original
#618fe2
Protanopia
#447fdd
Deuteranopia
#009eaa
Tritanopia
#7a7a7a
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).
AA Largeon White
3.64:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.78:1

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