#51D1EA#51D1EA

#51D1EA is a light, moderate teal. Relative luminance 0.533; OKLCH L 80.0% C 0.116 H 213.0°. Best body text is #000000 at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#51D1EA
RGB	rgb(81, 209, 234)
HSL	hsl(190, 78%, 62%)
HSV	hsv(190, 65%, 92%)
CMYK	cmyk(65.4%, 10.7%, 0%, 8.2%)
CIE-LAB	lab(78.04, -27.45, -22.69)
CIE-LCH	lch(78.04, 35.62, 219.58°)
OKLab	oklab(80% -0.0972 -0.0631)
OKLCH	oklch(80% 0.116 213)
XYZ	xyz(41.0389, 53.2863, 85.9484)
Luminance	0.5329 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D1EA #EA6A51

analogous

#51EAB7 #51D1EA #5185EA

triadic

#51D1EA #EA51D1 #D1EA51

tetradic

#51D1EA #B751EA #EA6A51 #85EA51

square

#51D1EA #B751EA #EA6A51 #85EA51

split-complementary

#51D1EA #EA5185 #EAB751

monochromatic

#1593AC #1BC2E2 #51D1EA #88DFF1 #BEEEF7

Accessibility & contrast

On white

1.80

#51D1EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.66

#51D1EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D1EA

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D1EA	#FFFFFF	#000000	##000000
##51D1EA	1.00	1.80	11.66	11.66
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.66	21.00	1.00	1.00
##000000	11.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BECAEB

Deuteranopia (green-blind)

#A8BAEA

Tritanopia (blue-blind)

#00DBD9

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d1ea;
/* rgb */ color: rgb(81, 209, 234);
/* oklch */ color: oklch(80.0% 0.116 213.0);

Tailwind

colors: {
  custom: {
    50: '#93dff0',
    500: '#51d1ea',
    950: '#000000',
  },
}

SCSS

$custom: #51d1ea;
$custom-light: #93dff0;
$custom-dark: #000000;

JSON

{
  "hex": "#51d1ea",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 234
  },
  "hsl": {
    "h": 189.804,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.79995,
    "c": 0.11585,
    "h": 213
  },
  "luminance": 0.53291
}

Semantic roles & 50–950 ramp

primary

#51D1EA

secondary

#AD4632

accent

#2D0BDB

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D1EA

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

Preview Lab → · Contrast checker → · Palette generator →