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Hefty Atlantic

#4483e6
Notes

Hefty Atlantic (#4483E6) 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 (217°, 76%, 58%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#4483e6
RGB
rgb(68, 131, 230)
HSL
hsl(217, 76%, 58%)
HWB
hwb(217 27% 10%)
OKLCH
oklch(61.8% 0.163 259.2)
HSV
hsv(217, 70%, 90%)
LAB
lab(55.25% 12.30 -56.12)
LCH
lch(55.25% 57.45 282.36)
CMYK
cmyk(70%, 43%, 0%, 10%)

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.

Atlantic
noun

The body of saltwater between the Americas and Eurasia/Africa — second-largest of Earth's oceans by area, deeper colored by river silt than the Mediterranean. The color refers to the average reflectance of mid-North Atlantic water on a clear day: a saturated, slightly muted blue with the optical depth of cold open water. Deeper than mediterranean, cooler than peacock, with the geographic weight of an ocean named for Atlas at its western horizon.

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.

#4483e6
Original
#538cea
Protanopia
#357de4
Deuteranopia
#009aa9
Tritanopia
#7d7d7d
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
3.73:1
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
5.63:1

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