#51CEE7#51CEE7

#51CEE7 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.2% C 0.114 H 213.3°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX#51CEE7
RGBrgb(81, 206, 231)
HSLhsl(190, 76%, 61%)
HSVhsv(190, 65%, 91%)
CMYKcmyk(64.9%, 10.8%, 0%, 9.4%)
CIE-LABlab(77.08, -26.86, -22.56)
CIE-LCHlch(77.08, 35.08, 220.02°)
OKLaboklab(79.18% -0.0953 -0.0627)
OKLCHoklch(79.18% 0.114 213.3)
XYZxyz(39.8824, 51.6571, 83.4548)
Luminance0.5166 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CEE7 #E76A51
analogous
#51E7B5 #51CEE7 #5183E7
triadic
#51CEE7 #E751CE #CEE751
tetradic
#51CEE7 #B551E7 #E76A51 #83E751
square
#51CEE7 #B551E7 #E76A51 #83E751
split-complementary
#51CEE7 #E75183 #E7B551
monochromatic
#178FA7 #1EBDDC #51CEE7 #87DDEE #BDECF6

Accessibility & contrast

On white

1.85
#51CEE7 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.33
#51CEE7 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CEE7
11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CEE7#FFFFFF#000000##000000
##51CEE71.001.8511.3311.33
#FFFFFF1.851.0021.0021.00
#00000011.3321.001.001.00
##00000011.3321.001.001.00

Color blindness preview

Protanopia (red-blind)
#BBC7E8
Deuteranopia (green-blind)
#A6B7E7
Tritanopia (blue-blind)
#00D8D6
Achromatopsia (no color)
#BEBEBE

Design tokens & code

CSS
--color: #51cee7;
/* rgb */ color: rgb(81, 206, 231);
/* oklch */ color: oklch(79.2% 0.114 213.3);
Tailwind
colors: {
  custom: {
    50: '#92ddee',
    500: '#51cee7',
    950: '#000000',
  },
}
SCSS
$custom: #51cee7;
$custom-light: #92ddee;
$custom-dark: #000000;
JSON
{
  "hex": "#51cee7",
  "rgb": {
    "r": 81,
    "g": 206,
    "b": 231
  },
  "hsl": {
    "h": 190,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.79182,
    "c": 0.1141,
    "h": 213.3
  },
  "luminance": 0.51661
}

Semantic roles & 50–950 ramp

primary
#51CEE7
secondary
#A84734
accent
#2F0ED8
background
#FCFEFF
surface
#F5FCFE
border
#CFD5D6
text
#0E1516
muted
#7F8485

Preview Lab

Preview with #51CEE7

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

Preview Lab → · Contrast checker → · Palette generator →

#51CEE7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva