#51BAF2#51BAF2

#51BAF2 is a light, vivid cyan. Relative luminance 0.433; OKLCH L 75.0% C 0.125 H 235.3°. Best body text is #000000 at 9.66:1 contrast (WCAG AA passes).

Color values

HEX#51BAF2
RGBrgb(81, 186, 242)
HSLhsl(201, 86%, 63%)
HSVhsv(201, 67%, 95%)
CMYKcmyk(66.5%, 23.1%, 0%, 5.1%)
CIE-LABlab(71.74, -13.20, -36.69)
CIE-LCHlch(71.74, 38.99, 250.22°)
OKLaboklab(75.05% -0.0714 -0.1031)
OKLCHoklch(75.05% 0.125 235.3)
XYZxyz(36.9730, 43.2740, 90.3914)
Luminance0.4328 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51BAF2 #F28951
analogous
#51F2DA #51BAF2 #5169F2
triadic
#51BAF2 #F251BA #BAF251
tetradic
#51BAF2 #DA51F2 #F28951 #69F251
square
#51BAF2 #DA51F2 #F28951 #69F251
split-complementary
#51BAF2 #F25169 #F2DA51
monochromatic
#0E7FBB #18A3EE #51BAF2 #8AD1F6 #C3E7FB

Accessibility & contrast

On white

2.17
#51BAF2 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.66
#51BAF2 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BAF2
9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51BAF2#FFFFFF#000000##000000
##51BAF21.002.179.669.66
#FFFFFF2.171.0021.0021.00
#0000009.6621.001.001.00
##0000009.6621.001.001.00

Color blindness preview

Protanopia (red-blind)
#9FB9F5
Deuteranopia (green-blind)
#89A9F1
Tritanopia (blue-blind)
#00C9CD
Achromatopsia (no color)
#B0B0B0

Design tokens & code

CSS
--color: #51baf2;
/* rgb */ color: rgb(81, 186, 242);
/* oklch */ color: oklch(75.0% 0.125 235.3);
Tailwind
colors: {
  custom: {
    50: '#92cef6',
    500: '#51baf2',
    950: '#000000',
  },
}
SCSS
$custom: #51baf2;
$custom-light: #92cef6;
$custom-dark: #000000;
JSON
{
  "hex": "#51baf2",
  "rgb": {
    "r": 81,
    "g": 186,
    "b": 242
  },
  "hsl": {
    "h": 200.87,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.7505,
    "c": 0.12538,
    "h": 235.3
  },
  "luminance": 0.43278
}

Semantic roles & 50–950 ramp

primary
#51BAF2
secondary
#ECC7B3
accent
#5103E3
background
#F9FCFF
surface
#F2F9FE
border
#CCD2D6
text
#0E1317
muted
#7E8285

Preview Lab

Preview with #51BAF2

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

Preview Lab → · Contrast checker → · Palette generator →

#51BAF2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva