#51E0EE#51E0EE

#51E0EE is a very light, vivid teal. Relative luminance 0.612; OKLCH L 83.6% C 0.121 H 204.4°. Best body text is #000000 at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#51E0EE
RGB	rgb(81, 224, 238)
HSL	hsl(185, 82%, 63%)
HSV	hsv(185, 66%, 93%)
CMYK	cmyk(66%, 5.9%, 0%, 6.7%)
CIE-LAB	lab(82.50, -33.51, -18.07)
CIE-LCH	lch(82.50, 38.07, 208.34°)
OKLab	oklab(83.63% -0.1104 -0.0501)
OKLCH	oklch(83.63% 0.121 204.4)
XYZ	xyz(45.4749, 61.2286, 90.2940)
Luminance	0.6123 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E0EE #EE5F51

analogous

#51EEAD #51E0EE #5192EE

triadic

#51E0EE #EE51E0 #E0EE51

tetradic

#51E0EE #AD51EE #EE5F51 #92EE51

square

#51E0EE #AD51EE #EE5F51 #92EE51

split-complementary

#51E0EE #EE5192 #EEAD51

monochromatic

#11A5B3 #19D6E9 #51E0EE #89EAF3 #C1F4F9

Accessibility & contrast

On white

1.59

#51E0EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.25

#51E0EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E0EE

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E0EE	#FFFFFF	#000000	##000000
##51E0EE	1.00	1.59	13.25	13.25
#FFFFFF	1.59	1.00	21.00	21.00
#000000	13.25	21.00	1.00	1.00
##000000	13.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFD7EF

Deuteranopia (green-blind)

#B8C6EF

Tritanopia (blue-blind)

#00E9E4

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #51e0ee;
/* rgb */ color: rgb(81, 224, 238);
/* oklch */ color: oklch(83.6% 0.121 204.4);

Tailwind

colors: {
  custom: {
    50: '#94eaf3',
    500: '#51e0ee',
    950: '#000000',
  },
}

SCSS

$custom: #51e0ee;
$custom-light: #94eaf3;
$custom-dark: #000000;

JSON

{
  "hex": "#51e0ee",
  "rgb": {
    "r": 81,
    "g": 224,
    "b": 238
  },
  "hsl": {
    "h": 185.35,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.83631,
    "c": 0.12128,
    "h": 204.4
  },
  "luminance": 0.61234
}

Semantic roles & 50–950 ramp

primary

#51E0EE

secondary

#B33C30

accent

#1A07DF

background

#FCFEFF

surface

#F5FDFE

border

#CFD5D6

text

#0F1617

muted

#808485

Preview Lab

Preview with #51E0EE

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

Preview Lab → · Contrast checker → · Palette generator →