#51CFF6#51CFF6

#51CFF6 is a light, vivid cyan. Relative luminance 0.530; OKLCH L 80.0% C 0.122 H 222.1°. Best body text is #000000 at 11.61:1 contrast (WCAG AA passes).

Color values

HEX#51CFF6
RGBrgb(81, 207, 246)
HSLhsl(194, 90%, 64%)
HSVhsv(194, 67%, 96%)
CMYKcmyk(67.1%, 15.9%, 0%, 3.5%)
CIE-LABlab(77.89, -22.85, -29.35)
CIE-LCHlch(77.89, 37.20, 232.10°)
OKLaboklab(80.01% -0.0906 -0.0819)
OKLCHoklch(80.01% 0.122 222.1)
XYZxyz(42.3339, 53.0241, 95.1745)
Luminance0.5303 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CFF6 #F67851
analogous
#51F6CB #51CFF6 #517DF6
triadic
#51CFF6 #F651CF #CFF651
tetradic
#51CFF6 #CB51F6 #F67851 #7DF651
square
#51CFF6 #CB51F6 #F67851 #7DF651
split-complementary
#51CFF6 #F6517D #F6CB51
monochromatic
#0A97C3 #17BFF3 #51CFF6 #8BDFF9 #C5EFFC

Accessibility & contrast

On white

1.81
#51CFF6 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.61
#51CFF6 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CFF6
11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CFF6#FFFFFF#000000##000000
##51CFF61.001.8111.6111.61
#FFFFFF1.811.0021.0021.00
#00000011.6121.001.001.00
##00000011.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#B8CAF8
Deuteranopia (green-blind)
#A1B9F6
Tritanopia (blue-blind)
#00DBDB
Achromatopsia (no color)
#C1C1C1

Design tokens & code

CSS
--color: #51cff6;
/* rgb */ color: rgb(81, 207, 246);
/* oklch */ color: oklch(80.0% 0.122 222.1);
Tailwind
colors: {
  custom: {
    50: '#94ddf9',
    500: '#51cff6',
    950: '#000000',
  },
}
SCSS
$custom: #51cff6;
$custom-light: #94ddf9;
$custom-dark: #000000;
JSON
{
  "hex": "#51cff6",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 246
  },
  "hsl": {
    "h": 194.182,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.8001,
    "c": 0.12219,
    "h": 222.1
  },
  "luminance": 0.53029
}

Semantic roles & 50–950 ramp

primary
#51CFF6
secondary
#C04E2B
accent
#3600E6
background
#FCFEFF
surface
#F5FCFF
border
#CFD5D7
text
#0F1517
muted
#808485

Preview Lab

Preview with #51CFF6

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

Preview Lab → · Contrast checker → · Palette generator →

#51CFF6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva