#51EEE9#51EEE9

#51EEE9 is a very light, vivid teal. Relative luminance 0.688; OKLCH L 86.7% C 0.129 H 192.0°. Best body text is #000000 at 14.76:1 contrast (WCAG AA passes).

Color values

HEX	#51EEE9
RGB	rgb(81, 238, 233)
HSL	hsl(178, 82%, 63%)
HSV	hsv(178, 66%, 93%)
CMYK	cmyk(66%, 0%, 2.1%, 6.7%)
CIE-LAB	lab(86.39, -41.34, -9.60)
CIE-LCH	lch(86.39, 42.44, 193.08°)
OKLab	oklab(86.73% -0.1262 -0.0268)
OKLCH	oklch(86.73% 0.129 192)
XYZ	xyz(48.6692, 68.7761, 87.7851)
Luminance	0.6878 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EEE9 #EE5156

analogous

#51EE9A #51EEE9 #51A5EE

triadic

#51EEE9 #E951EE #EEE951

tetradic

#51EEE9 #9A51EE #EE5156 #A5EE51

square

#51EEE9 #9A51EE #EE5156 #A5EE51

split-complementary

#51EEE9 #EE51A5 #EE9A51

monochromatic

#11B3AE #19E9E2 #51EEE9 #89F3F0 #C1F9F7

Accessibility & contrast

On white

1.42

#51EEE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.76

#51EEE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EEE9

14.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EEE9	#FFFFFF	#000000	##000000
##51EEE9	1.00	1.42	14.76	14.76
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.76	21.00	1.00	1.00
##000000	14.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0E2E9

Deuteranopia (green-blind)

#C8D1EA

Tritanopia (blue-blind)

#00F5EC

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #51eee9;
/* rgb */ color: rgb(81, 238, 233);
/* oklch */ color: oklch(86.7% 0.129 192.0);

Tailwind

colors: {
  custom: {
    50: '#96f4f0',
    500: '#51eee9',
    950: '#000000',
  },
}

SCSS

$custom: #51eee9;
$custom-light: #96f4f0;
$custom-dark: #000000;

JSON

{
  "hex": "#51eee9",
  "rgb": {
    "r": 81,
    "g": 238,
    "b": 233
  },
  "hsl": {
    "h": 178.089,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.86731,
    "c": 0.12905,
    "h": 192
  },
  "luminance": 0.68782
}

Semantic roles & 50–950 ramp

primary

#51EEE9

secondary

#B33034

accent

#070EDF

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0F1716

muted

#808585

Preview Lab

Preview with #51EEE9

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

Preview Lab → · Contrast checker → · Palette generator →