colors
Back to gallery

Lit Mizu

#51fbfd
Notes

Lit Mizu (#51FBFD) 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 (181°, 98%, 65%) 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
#51fbfd
RGB
rgb(81, 251, 253)
HSL
hsl(181, 98%, 65%)
HWB
hwb(181 32% 1%)
OKLCH
oklch(90.4% 0.136 196.2)
P3
color(display-p3 0.5260 0.9710 0.9847)
HSV
hsv(181, 68%, 99%)
LAB
lab(90.70% -41.73 -13.63)
LCH
lch(90.70% 43.89 198.08)
CMYK
cmyk(68%, 1%, 0%, 1%)

Etymology

Lit
adjective

The past participle of light — short and modern. Used as a color word since the late twentieth century for hues that read as if they were illuminated. Lit yellow, lit pink: the implication is luminance combined with the slight optical impression of an internal light source. Sits in the bright-bucket extreme alongside electric.

Mizu
noun

The Japanese word for water — used as a color word for the saturated pale blue of fresh spring water and the mizu-iro of traditional kimono linings. Mizu spans the cyan-blue boundary in Japanese color vocabulary. The color refers to fresh spring water in a Kyoto stone basin: a soft, slightly cool pale blue with the optical clarity of cold mineral water.

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.

#51fbfd
Original
#eaeffd
Protanopia
#d1dcfe
Deuteranopia
#00fffb
Tritanopia
#d7d7d7
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
1.27:1
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
16.57:1

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
##51FBFD
Display P3
Display P3
color(display-p3 0.5260 0.9710 0.9847)
P3 has subtle headroomOKLCH chroma 0.136

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.

Related Colors

Canvas