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Bright Paraiba

#12ebe4
Notes

Bright Paraiba (#12EBE4) 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 (178°, 86%, 50%) 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
#12ebe4
RGB
rgb(18, 235, 228)
HSL
hsl(178, 86%, 50%)
HWB
hwb(178 7% 8%)
OKLCH
oklch(85.0% 0.145 190.9)
HSV
hsv(178, 92%, 92%)
LAB
lab(84.56% -46.78 -9.79)
LCH
lch(84.56% 47.79 191.83)
CMYK
cmyk(92%, 0%, 3%, 8%)

Etymology

Bright
adjective

Old English beorht, shining, luminous — cognate with the German Bracht, splendor. Applied to color since at least the medieval period for hues that read as luminous: not just light in value but optically active, as if scattering more light back than a dimmer color of the same lightness would. Sits at the bright-bucket center alongside vivid and brilliant.

Paraiba
noun

The intensely-blue copper-bearing variety of tourmaline — discovered in 1989 in the Brazilian state of Paraíba. Paraiba tourmaline is one of the most expensive gem materials by weight. The color refers to a faceted Paraiba tourmaline: a saturated, slightly cool electric blue-green with the gem's signature internal fire.

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.

#12ebe4
Original
#dcdee4
Protanopia
#c2cbe5
Deuteranopia
#00f2e8
Tritanopia
#bcbcbc
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
1.50:1
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
14.03:1

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