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Mapped Frost

#63cee7
Notes

Mapped Frost (#63CEE7) 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 (191°, 73%, 65%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#63cee7
RGB
rgb(99, 206, 231)
HSL
hsl(191, 73%, 65%)
HWB
hwb(191 39% 9%)
OKLCH
oklch(79.8% 0.104 215.3)
P3
color(display-p3 0.4980 0.7982 0.8934)
HSV
hsv(191, 57%, 91%)
LAB
lab(77.61% -23.78 -21.69)
LCH
lch(77.61% 32.18 222.36)
CMYK
cmyk(57%, 11%, 0%, 9%)

Etymology

Mapped
adjective

Latin mappa, cloth / napkin — past-participle of map. As a color modifier, mapped implies a clear-and-cartographic-and-surveyed quality, the crisp color of Ordnance-Survey-and-USGS scientific-and-cadastral cartographic-and-topographic mapping-and-projection. Sits at the crisp-and-mapped end of the grid, parallel to plotted and surveyed in usage.

Frost
noun

The ice crystals that condense from atmospheric moisture onto cold surfaces — windowpanes, leaves, the windshield of a parked car at dawn. The color is barely a color: a very pale, slightly green-shifted blue with the optical brightness of micron-scale crystals scattering light. Lighter than glacier, warmer than ice, with the agricultural-calendar weight of a phenomenon that defines the growing season.

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.

#63cee7
Original
#bcc8e8
Protanopia
#a9b9e7
Deuteranopia
#00d7d6
Tritanopia
#b9b9b9
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
1.82:1
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
11.51:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##63CEE7
Display P3
Display P3
color(display-p3 0.4980 0.7982 0.8934)
P3 has subtle headroomOKLCH chroma 0.104

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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