#51CEE8#51CEE8

#51CEE8 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.2% C 0.115 H 214.0°. Best body text is #000000 at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#51CEE8
RGB	rgb(81, 206, 232)
HSL	hsl(190, 77%, 61%)
HSV	hsv(190, 65%, 91%)
CMYK	cmyk(65.1%, 11.2%, 0%, 9%)
CIE-LAB	lab(77.11, -26.56, -23.04)
CIE-LCH	lch(77.11, 35.17, 220.94°)
OKLab	oklab(79.22% -0.0949 -0.0641)
OKLCH	oklch(79.22% 0.115 214)
XYZ	xyz(40.0241, 51.7138, 84.2007)
Luminance	0.5172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CEE8 #E86B51

analogous

#51E8B7 #51CEE8 #5183E8

triadic

#51CEE8 #E851CE #CEE851

tetradic

#51CEE8 #B751E8 #E86B51 #83E851

square

#51CEE8 #B751E8 #E86B51 #83E851

split-complementary

#51CEE8 #E85183 #E8B751

monochromatic

#168FA8 #1DBDDE #51CEE8 #87DDEF #BDECF6

Accessibility & contrast

On white

1.85

#51CEE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.34

#51CEE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CEE8

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CEE8	#FFFFFF	#000000	##000000
##51CEE8	1.00	1.85	11.34	11.34
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.34	21.00	1.00	1.00
##000000	11.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC8EA

Deuteranopia (green-blind)

#A5B7E8

Tritanopia (blue-blind)

#00D8D6

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51cee8;
/* rgb */ color: rgb(81, 206, 232);
/* oklch */ color: oklch(79.2% 0.115 214.0);

Tailwind

colors: {
  custom: {
    50: '#92ddef',
    500: '#51cee8',
    950: '#000000',
  },
}

SCSS

$custom: #51cee8;
$custom-light: #92ddef;
$custom-dark: #000000;

JSON

{
  "hex": "#51cee8",
  "rgb": {
    "r": 81,
    "g": 206,
    "b": 232
  },
  "hsl": {
    "h": 190.331,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.79221,
    "c": 0.11454,
    "h": 214
  },
  "luminance": 0.51718
}

Semantic roles & 50–950 ramp

primary

#51CEE8

secondary

#AA4833

accent

#300DD9

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51CEE8

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

Preview Lab → · Contrast checker → · Palette generator →