#51E7FC#51E7FC

#51E7FC is a very light, vivid teal. Relative luminance 0.659; OKLCH L 85.8% C 0.127 H 208.4°. Best body text is #000000 at 14.19:1 contrast (WCAG AA passes).

Color values

HEX#51E7FC
RGBrgb(81, 231, 252)
HSLhsl(187, 97%, 65%)
HSVhsv(187, 68%, 99%)
CMYKcmyk(67.9%, 8.3%, 0%, 1.2%)
CIE-LABlab(84.96, -32.80, -21.75)
CIE-LCHlch(84.96, 39.35, 213.55°)
OKLaboklab(85.76% -0.1117 -0.0604)
OKLCHoklch(85.76% 0.127 208.4)
XYZxyz(49.5324, 65.9238, 102.1907)
Luminance0.6593 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E7FC #FC6651
analogous
#51FCBB #51E7FC #5192FC
triadic
#51E7FC #FC51E7 #E7FC51
tetradic
#51E7FC #BB51FC #FC6651 #92FC51
square
#51E7FC #BB51FC #FC6651 #92FC51
split-complementary
#51E7FC #FC5192 #FCBB51
monochromatic
#04B6CF #15DFFB #51E7FC #8DEFFD #C9F8FE

Accessibility & contrast

On white

1.48
#51E7FC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.19
#51E7FC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E7FC
14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E7FC#FFFFFF#000000##000000
##51E7FC1.001.4814.1914.19
#FFFFFF1.481.0021.0021.00
#00000014.1921.001.001.00
##00000014.1921.001.001.00

Color blindness preview

Protanopia (red-blind)
#D3DFFD
Deuteranopia (green-blind)
#BBCCFC
Tritanopia (blue-blind)
#00F1ED
Achromatopsia (no color)
#D4D4D4

Design tokens & code

CSS
--color: #51e7fc;
/* rgb */ color: rgb(81, 231, 252);
/* oklch */ color: oklch(85.8% 0.127 208.4);
Tailwind
colors: {
  custom: {
    50: '#96effd',
    500: '#51e7fc',
    950: '#000000',
  },
}
SCSS
$custom: #51e7fc;
$custom-light: #96effd;
$custom-dark: #000000;
JSON
{
  "hex": "#51e7fc",
  "rgb": {
    "r": 81,
    "g": 231,
    "b": 252
  },
  "hsl": {
    "h": 187.368,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.85761,
    "c": 0.12699,
    "h": 208.4
  },
  "luminance": 0.65929
}

Semantic roles & 50–950 ramp

primary
#51E7FC
secondary
#CA3B27
accent
#1C00E6
background
#FCFFFF
surface
#F6FEFF
border
#D0D6D7
text
#0F1617
muted
#808585

Preview Lab

Preview with #51E7FC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#51E7FC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva