#51BDCB#51BDCB

#51BDCB is a light, moderate teal. Relative luminance 0.425; OKLCH L 74.1% C 0.100 H 206.9°. Best body text is #000000 at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#51BDCB
RGB	rgb(81, 189, 203)
HSL	hsl(187, 54%, 56%)
HSV	hsv(187, 60%, 80%)
CMYK	cmyk(60.1%, 6.9%, 0%, 20.4%)
CIE-LAB	lab(71.18, -26.63, -16.32)
CIE-LCH	lch(71.18, 31.23, 211.51°)
OKLab	oklab(74.13% -0.089 -0.0452)
OKLCH	oklch(74.13% 0.1 206.9)
XYZ	xyz(32.3659, 42.4530, 62.9769)
Luminance	0.4246 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BDCB #CB5F51

analogous

#51CB9C #51BDCB #5180CB

triadic

#51BDCB #CB51BD #BDCB51

tetradic

#51BDCB #9C51CB #CB5F51 #80CB51

square

#51BDCB #9C51CB #CB5F51 #80CB51

split-complementary

#51BDCB #CB5180 #CB9C51

monochromatic

#25727C #339EAC #51BDCB #80CFD9 #AFE1E7

Accessibility & contrast

On white

2.21

#51BDCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.49

#51BDCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BDCB

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BDCB	#FFFFFF	#000000	##000000
##51BDCB	1.00	2.21	9.49	9.49
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.49	21.00	1.00	1.00
##000000	9.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEB6CC

Deuteranopia (green-blind)

#9CA8CB

Tritanopia (blue-blind)

#00C5C1

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51bdcb;
/* rgb */ color: rgb(81, 189, 203);
/* oklch */ color: oklch(74.1% 0.100 206.9);

Tailwind

colors: {
  custom: {
    50: '#8ed1da',
    500: '#51bdcb',
    950: '#000000',
  },
}

SCSS

$custom: #51bdcb;
$custom-light: #8ed1da;
$custom-dark: #000000;

JSON

{
  "hex": "#51bdcb",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 203
  },
  "hsl": {
    "h": 186.885,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.74131,
    "c": 0.09982,
    "h": 206.9
  },
  "luminance": 0.42456
}

Semantic roles & 50–950 ramp

primary

#51BDCB

secondary

#D5A8A3

accent

#5B4ADD

background

#F9FCFD

surface

#F2F9FA

border

#CCD2D3

text

#0D1414

muted

#7E8283

Preview Lab

Preview with #51BDCB

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

Preview Lab → · Contrast checker → · Palette generator →