#51BDCF#51BDCF

#51BDCF is a light, moderate teal. Relative luminance 0.426; OKLCH L 74.3% C 0.101 H 210.2°. Best body text is #000000 at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#51BDCF
RGB	rgb(81, 189, 207)
HSL	hsl(189, 57%, 56%)
HSV	hsv(189, 61%, 81%)
CMYK	cmyk(60.9%, 8.7%, 0%, 18.8%)
CIE-LAB	lab(71.31, -25.47, -18.31)
CIE-LCH	lch(71.31, 31.37, 215.71°)
OKLab	oklab(74.28% -0.0874 -0.0508)
OKLCH	oklch(74.28% 0.101 210.2)
XYZ	xyz(32.8488, 42.6461, 65.5198)
Luminance	0.4265 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BDCF #CF6351

analogous

#51CFA2 #51BDCF #517ECF

triadic

#51BDCF #CF51BD #BDCF51

tetradic

#51BDCF #A251CF #CF6351 #7ECF51

square

#51BDCF #A251CF #CF6351 #7ECF51

split-complementary

#51BDCF #CF517E #CFA251

monochromatic

#247482 #319FB2 #51BDCF #81CFDC #B1E1E9

Accessibility & contrast

On white

2.20

#51BDCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.53

#51BDCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BDCF

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BDCF	#FFFFFF	#000000	##000000
##51BDCF	1.00	2.20	9.53	9.53
#FFFFFF	2.20	1.00	21.00	21.00
#000000	9.53	21.00	1.00	1.00
##000000	9.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB7D0

Deuteranopia (green-blind)

#9BA9CF

Tritanopia (blue-blind)

#00C5C2

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51bdcf;
/* rgb */ color: rgb(81, 189, 207);
/* oklch */ color: oklch(74.3% 0.101 210.2);

Tailwind

colors: {
  custom: {
    50: '#8fd1dd',
    500: '#51bdcf',
    950: '#000000',
  },
}

SCSS

$custom: #51bdcf;
$custom-light: #8fd1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51bdcf",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 207
  },
  "hsl": {
    "h": 188.571,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.74281,
    "c": 0.10105,
    "h": 210.2
  },
  "luminance": 0.4265
}

Semantic roles & 50–950 ramp

primary

#51BDCF

secondary

#D8ABA4

accent

#5E48E0

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BDCF

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

Preview Lab → · Contrast checker → · Palette generator →