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Resplendent Cyan

#12dbf7
Notes

Resplendent Cyan (#12DBF7) is a true cyan with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (187°, 93%, 52%) 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
#12dbf7
RGB
rgb(18, 219, 247)
HSL
hsl(187, 93%, 52%)
HWB
hwb(187 7% 3%)
OKLCH
oklch(81.8% 0.140 211.2)
HSV
hsv(187, 93%, 97%)
LAB
lab(80.46% -33.85 -26.03)
LCH
lch(80.46% 42.70 217.56)
CMYK
cmyk(93%, 11%, 0%, 3%)

Etymology

Resplendent
adjective

Latin resplendēns, shining-back — present-participle of resplendere. As a color modifier, resplendent implies a saturated-and-magnificent-shining quality, the bright color of Imperial-court full-formal-regalia gold-and-silver-and-jewel reflective surfaces. Sits at the bright-and-saturated end of the grid, parallel to radiant and brilliant in usage.

Cyan
noun

From the Greek kyanos, deep blue, originally referring to the lapis-derived blue of antiquity. In modern usage, cyan is one of the four printing primaries (with magenta, yellow, and black) and an additive primary on screens. The color refers to a pure CMYK cyan tile: a saturated, clean blue-green with the optical brightness of an additive-color primary. Cooler than turquoise, lighter than cerulean, with the technical specificity of a color defined by a printing-press standard.

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.

#12dbf7
Original
#c5d3f9
Protanopia
#aabff7
Deuteranopia
#00e7e4
Tritanopia
#b2b2b2
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
1.68:1
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
12.50:1

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