#51E5EC#51E5EC

#51E5EC is a very light, vivid teal. Relative luminance 0.638; OKLCH L 84.7% C 0.123 H 199.6°. Best body text is #000000 at 13.77:1 contrast (WCAG AA passes).

Color values

HEX	#51E5EC
RGB	rgb(81, 229, 236)
HSL	hsl(183, 80%, 62%)
HSV	hsv(183, 66%, 93%)
CMYK	cmyk(65.7%, 3%, 0%, 7.5%)
CIE-LAB	lab(83.88, -36.41, -14.94)
CIE-LCH	lch(83.88, 39.36, 202.30°)
OKLab	oklab(84.73% -0.1162 -0.0414)
OKLCH	oklch(84.73% 0.123 199.6)
XYZ	xyz(46.5463, 63.8388, 89.2096)
Luminance	0.6384 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E5EC #EC5851

analogous

#51ECA6 #51E5EC #5197EC

triadic

#51E5EC #EC51E5 #E5EC51

tetradic

#51E5EC #A651EC #EC5851 #97EC51

square

#51E5EC #A651EC #EC5851 #97EC51

split-complementary

#51E5EC #EC5197 #ECA651

monochromatic

#13A8AF #1ADDE6 #51E5EC #88EDF2 #BFF5F8

Accessibility & contrast

On white

1.53

#51E5EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.77

#51E5EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E5EC

13.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E5EC	#FFFFFF	#000000	##000000
##51E5EC	1.00	1.53	13.77	13.77
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.77	21.00	1.00	1.00
##000000	13.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5DBED

Deuteranopia (green-blind)

#BECAED

Tritanopia (blue-blind)

#00EDE7

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #51e5ec;
/* rgb */ color: rgb(81, 229, 236);
/* oklch */ color: oklch(84.7% 0.123 199.6);

Tailwind

colors: {
  custom: {
    50: '#95edf2',
    500: '#51e5ec',
    950: '#000000',
  },
}

SCSS

$custom: #51e5ec;
$custom-light: #95edf2;
$custom-dark: #000000;

JSON

{
  "hex": "#51e5ec",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 236
  },
  "hsl": {
    "h": 182.71,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.84726,
    "c": 0.12334,
    "h": 199.6
  },
  "luminance": 0.63844
}

Semantic roles & 50–950 ramp

primary

#51E5EC

secondary

#B03731

accent

#1209DD

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0F1616

muted

#808585

Preview Lab

Preview with #51E5EC

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

Preview Lab → · Contrast checker → · Palette generator →