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Fresh Polar

#51ece5
Notes

Fresh Polar (#51ECE5) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (177°, 80%, 62%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#51ece5
RGB
rgb(81, 236, 229)
HSL
hsl(177, 80%, 62%)
HWB
hwb(177 32% 7%)
OKLCH
oklch(86.1% 0.128 190.7)
HSV
hsv(177, 66%, 93%)
LAB
lab(85.70% -41.51 -8.53)
LCH
lch(85.70% 42.38 191.61)
CMYK
cmyk(66%, 0%, 3%, 7%)

Etymology

Fresh
adjective

Old English fersc, unsalted / not stale — sharing root with German frisch. As a color modifier, fresh implies a clear-and-newly-applied quality where the hue carries the just-emerged visual register. Sits at the crisp-and-clean end of the grid, parallel to crisp and new in usage.

Polar
noun

Of the polar — the ice caps and the meltwater seas at the high latitudes. The color refers to polar sea ice on a clear day at the height of summer melt: a soft, slightly green-shifted very pale blue with the optical brightness of bubble-rich ice. Lighter than glacier, cooler than frost, with the climatological weight of a region whose color is rapidly disappearing.

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

Click any swatch to explore

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.

#51ece5
Original
#dfe0e5
Protanopia
#c7cfe6
Deuteranopia
#00f2e9
Tritanopia
#cbcbcb
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).
Failon White
1.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
14.48:1

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