#51A2E3#51A2E3

#51A2E3 is a light, vivid cyan. Relative luminance 0.331; OKLCH L 68.9% C 0.125 H 245.3°. Best body text is #000000 at 7.63:1 contrast (WCAG AA passes).

Color values

HEX#51A2E3
RGBrgb(81, 162, 227)
HSLhsl(207, 72%, 60%)
HSVhsv(207, 64%, 89%)
CMYKcmyk(64.3%, 28.6%, 0%, 11%)
CIE-LABlab(64.27, -4.90, -40.15)
CIE-LCHlch(64.27, 40.45, 263.05°)
OKLaboklab(68.92% -0.0522 -0.1132)
OKLCHoklch(68.92% 0.125 245.3)
XYZxyz(30.1736, 33.1330, 77.4633)
Luminance0.3314 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51A2E3 #E39251
analogous
#51E3DB #51A2E3 #5159E3
triadic
#51A2E3 #E351A2 #A2E351
tetradic
#51A2E3 #DB51E3 #E39251 #59E351
square
#51A2E3 #DB51E3 #E39251 #59E351
split-complementary
#51A2E3 #E35159 #E3DB51
monochromatic
#1A64A0 #2285D5 #51A2E3 #86BEEB #BADAF4

Accessibility & contrast

On white

2.75
#51A2E3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.63
#51A2E3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51A2E3
7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51A2E3#FFFFFF#000000##000000
##51A2E31.002.757.637.63
#FFFFFF2.751.0021.0021.00
#0000007.6321.001.001.00
##0000007.6321.001.001.00

Color blindness preview

Protanopia (red-blind)
#85A4E6
Deuteranopia (green-blind)
#7195E2
Tritanopia (blue-blind)
#00B2B9
Achromatopsia (no color)
#9C9C9C

Design tokens & code

CSS
--color: #51a2e3;
/* rgb */ color: rgb(81, 162, 227);
/* oklch */ color: oklch(68.9% 0.125 245.3);
Tailwind
colors: {
  custom: {
    50: '#8fbdec',
    500: '#51a2e3',
    950: '#000000',
  },
}
SCSS
$custom: #51a2e3;
$custom-light: #8fbdec;
$custom-dark: #000000;
JSON
{
  "hex": "#51a2e3",
  "rgb": {
    "r": 81,
    "g": 162,
    "b": 227
  },
  "hsl": {
    "h": 206.712,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.68921,
    "c": 0.12468,
    "h": 245.3
  },
  "luminance": 0.33136
}

Semantic roles & 50–950 ramp

primary
#51A2E3
secondary
#E4C5AC
accent
#6811D4
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0E1216
muted
#7E8184

Preview Lab

Preview with #51A2E3

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

Preview Lab → · Contrast checker → · Palette generator →

#51A2E3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva