#51BDCD#51BDCD

#51BDCD is a light, moderate teal. Relative luminance 0.426; OKLCH L 74.2% C 0.100 H 208.6°. Best body text is #000000 at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#51BDCD
RGB	rgb(81, 189, 205)
HSL	hsl(188, 55%, 56%)
HSV	hsv(188, 60%, 80%)
CMYK	cmyk(60.5%, 7.8%, 0%, 19.6%)
CIE-LAB	lab(71.25, -26.05, -17.32)
CIE-LCH	lch(71.25, 31.28, 213.61°)
OKLab	oklab(74.21% -0.0882 -0.048)
OKLCH	oklch(74.21% 0.1 208.6)
XYZ	xyz(32.6058, 42.5489, 64.2402)
Luminance	0.4255 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BDCD #CD6151

analogous

#51CD9F #51BDCD #517FCD

triadic

#51BDCD #CD51BD #BDCD51

tetradic

#51BDCD #9F51CD #CD6151 #7FCD51

square

#51BDCD #9F51CD #CD6151 #7FCD51

split-complementary

#51BDCD #CD517F #CD9F51

monochromatic

#25737F #329FAF #51BDCD #81CFDB #B0E1E8

Accessibility & contrast

On white

2.21

#51BDCD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.51

#51BDCD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BDCD

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BDCD	#FFFFFF	#000000	##000000
##51BDCD	1.00	2.21	9.51	9.51
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.51	21.00	1.00	1.00
##000000	9.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEB6CE

Deuteranopia (green-blind)

#9BA9CD

Tritanopia (blue-blind)

#00C5C2

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51bdcd;
/* rgb */ color: rgb(81, 189, 205);
/* oklch */ color: oklch(74.2% 0.100 208.6);

Tailwind

colors: {
  custom: {
    50: '#8ed1dc',
    500: '#51bdcd',
    950: '#000000',
  },
}

SCSS

$custom: #51bdcd;
$custom-light: #8ed1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#51bdcd",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 205
  },
  "hsl": {
    "h": 187.742,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.74206,
    "c": 0.10038,
    "h": 208.6
  },
  "luminance": 0.42552
}

Semantic roles & 50–950 ramp

primary

#51BDCD

secondary

#D7AAA3

accent

#5C49DF

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BDCD

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

Preview Lab → · Contrast checker → · Palette generator →