#51A2E1#51A2E1

#51A2E1 is a light, vivid cyan. Relative luminance 0.330; OKLCH L 68.8% C 0.122 H 244.5°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX#51A2E1
RGBrgb(81, 162, 225)
HSLhsl(206, 71%, 60%)
HSVhsv(206, 64%, 88%)
CMYKcmyk(64%, 28%, 0%, 11.8%)
CIE-LABlab(64.18, -5.55, -39.18)
CIE-LCHlch(64.18, 39.58, 261.94°)
OKLaboklab(68.82% -0.0528 -0.1104)
OKLCHoklch(68.82% 0.122 244.5)
XYZxyz(29.8992, 33.0232, 76.0180)
Luminance0.3303 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51A2E1 #E19051
analogous
#51E1D8 #51A2E1 #515AE1
triadic
#51A2E1 #E151A2 #A2E151
tetradic
#51A2E1 #D851E1 #E19051 #5AE151
square
#51A2E1 #D851E1 #E19051 #5AE151
split-complementary
#51A2E1 #E1515A #E1D851
monochromatic
#1B649D #2485D1 #51A2E1 #85BEEA #B9DAF3

Accessibility & contrast

On white

2.76
#51A2E1 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.61
#51A2E1 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2E1
7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51A2E1#FFFFFF#000000##000000
##51A2E11.002.767.617.61
#FFFFFF2.761.0021.0021.00
#0000007.6121.001.001.00
##0000007.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#86A3E4
Deuteranopia (green-blind)
#7295E0
Tritanopia (blue-blind)
#00B1B8
Achromatopsia (no color)
#9C9C9C

Design tokens & code

CSS
--color: #51a2e1;
/* rgb */ color: rgb(81, 162, 225);
/* oklch */ color: oklch(68.8% 0.122 244.5);
Tailwind
colors: {
  custom: {
    50: '#8fbdea',
    500: '#51a2e1',
    950: '#000000',
  },
}
SCSS
$custom: #51a2e1;
$custom-light: #8fbdea;
$custom-dark: #000000;
JSON
{
  "hex": "#51a2e1",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 225
  },
  "hsl": {
    "h": 206.25,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.68822,
    "c": 0.1224,
    "h": 244.5
  },
  "luminance": 0.33026
}

Semantic roles & 50–950 ramp

primary
#51A2E1
secondary
#E3C3AB
accent
#893AED
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #51A2E1

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

Preview Lab → · Contrast checker → · Palette generator →

#51A2E1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva