#51D3E6#51D3E6

#51D3E6 is a light, moderate teal. Relative luminance 0.541; OKLCH L 80.3% C 0.115 H 208.7°. Best body text is #000000 at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#51D3E6
RGB	rgb(81, 211, 230)
HSL	hsl(188, 75%, 61%)
HSV	hsv(188, 65%, 90%)
CMYK	cmyk(64.8%, 8.3%, 0%, 9.8%)
CIE-LAB	lab(78.49, -29.60, -19.88)
CIE-LCH	lch(78.49, 35.65, 213.88°)
OKLab	oklab(80.31% -0.1007 -0.0552)
OKLCH	oklch(80.31% 0.115 208.7)
XYZ	xyz(40.9645, 54.0465, 83.1207)
Luminance	0.5405 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3E6 #E66451

analogous

#51E6AE #51D3E6 #5188E6

triadic

#51D3E6 #E651D3 #D3E651

tetradic

#51D3E6 #AE51E6 #E66451 #88E651

square

#51D3E6 #AE51E6 #E66451 #88E651

split-complementary

#51D3E6 #E65188 #E6AE51

monochromatic

#1893A5 #1FC3DA #51D3E6 #87E1EE #BCEEF5

Accessibility & contrast

On white

1.78

#51D3E6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.81

#51D3E6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3E6

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3E6	#FFFFFF	#000000	##000000
##51D3E6	1.00	1.78	11.81	11.81
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.81	21.00	1.00	1.00
##000000	11.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CBE7

Deuteranopia (green-blind)

#ACBBE6

Tritanopia (blue-blind)

#00DCD9

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51d3e6;
/* rgb */ color: rgb(81, 211, 230);
/* oklch */ color: oklch(80.3% 0.115 208.7);

Tailwind

colors: {
  custom: {
    50: '#93e1ee',
    500: '#51d3e6',
    950: '#000000',
  },
}

SCSS

$custom: #51d3e6;
$custom-light: #93e1ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3e6",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 230
  },
  "hsl": {
    "h": 187.651,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.80309,
    "c": 0.11485,
    "h": 208.7
  },
  "luminance": 0.54051
}

Semantic roles & 50–950 ramp

primary

#51D3E6

secondary

#A74334

accent

#280ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51D3E6

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

Preview Lab → · Contrast checker → · Palette generator →