#51D3E3#51D3E3

#51D3E3 is a light, moderate teal. Relative luminance 0.539; OKLCH L 80.2% C 0.114 H 206.6°. Best body text is #000000 at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#51D3E3
RGB	rgb(81, 211, 227)
HSL	hsl(187, 72%, 60%)
HSV	hsv(187, 64%, 89%)
CMYK	cmyk(64.3%, 7%, 0%, 11%)
CIE-LAB	lab(78.39, -30.47, -18.42)
CIE-LCH	lch(78.39, 35.60, 211.15°)
OKLab	oklab(80.2% -0.1019 -0.0511)
OKLCH	oklch(80.2% 0.114 206.6)
XYZ	xyz(40.5468, 53.8795, 80.9210)
Luminance	0.5388 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3E3 #E36151

analogous

#51E3AA #51D3E3 #518AE3

triadic

#51D3E3 #E351D3 #D3E351

tetradic

#51D3E3 #AA51E3 #E36151 #8AE351

square

#51D3E3 #AA51E3 #E36151 #8AE351

split-complementary

#51D3E3 #E3518A #E3AA51

monochromatic

#1A91A0 #22C1D5 #51D3E3 #86E0EB #BAEEF4

Accessibility & contrast

On white

1.78

#51D3E3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.78

#51D3E3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3E3

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3E3	#FFFFFF	#000000	##000000
##51D3E3	1.00	1.78	11.78	11.78
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.78	21.00	1.00	1.00
##000000	11.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CBE4

Deuteranopia (green-blind)

#ADBBE3

Tritanopia (blue-blind)

#00DCD8

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51d3e3;
/* rgb */ color: rgb(81, 211, 227);
/* oklch */ color: oklch(80.2% 0.114 206.6);

Tailwind

colors: {
  custom: {
    50: '#92e1eb',
    500: '#51d3e3',
    950: '#000000',
  },
}

SCSS

$custom: #51d3e3;
$custom-light: #92e1eb;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3e3",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 227
  },
  "hsl": {
    "h": 186.575,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.80198,
    "c": 0.11402,
    "h": 206.6
  },
  "luminance": 0.53884
}

Semantic roles & 50–950 ramp

primary

#51D3E3

secondary

#A34135

accent

#2711D4

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D3E3

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

Preview Lab → · Contrast checker → · Palette generator →