#51B7BF#51B7BF

#51B7BF is a light, moderate teal. Relative luminance 0.394; OKLCH L 72.3% C 0.095 H 202.3°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#51B7BF
RGB	rgb(81, 183, 191)
HSL	hsl(184, 46%, 53%)
HSV	hsv(184, 58%, 75%)
CMYK	cmyk(57.6%, 4.2%, 0%, 25.1%)
CIE-LAB	lab(69.02, -27.08, -12.99)
CIE-LCH	lch(69.02, 30.03, 205.63°)
OKLab	oklab(72.26% -0.0875 -0.0359)
OKLCH	oklch(72.26% 0.095 202.3)
XYZ	xyz(29.7269, 39.3749, 55.3136)
Luminance	0.3938 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B7BF #BF5951

analogous

#51BF90 #51B7BF #5180BF

triadic

#51B7BF #BF51B7 #B7BF51

tetradic

#51B7BF #9051BF #BF5951 #80BF51

square

#51B7BF #9051BF #BF5951 #80BF51

split-complementary

#51B7BF #BF5180 #BF9051

monochromatic

#28686D #39939A #51B7BF #7ECACF #AADCE0

Accessibility & contrast

On white

2.37

#51B7BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#51B7BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B7BF

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B7BF	#FFFFFF	#000000	##000000
##51B7BF	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB0C0

Deuteranopia (green-blind)

#99A3C0

Tritanopia (blue-blind)

#00BDB9

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #51b7bf;
/* rgb */ color: rgb(81, 183, 191);
/* oklch */ color: oklch(72.3% 0.095 202.3);

Tailwind

colors: {
  custom: {
    50: '#8dcdd2',
    500: '#51b7bf',
    950: '#000000',
  },
}

SCSS

$custom: #51b7bf;
$custom-light: #8dcdd2;
$custom-dark: #000000;

JSON

{
  "hex": "#51b7bf",
  "rgb": {
    "r": 81,
    "g": 183,
    "b": 191
  },
  "hsl": {
    "h": 184.364,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72264,
    "c": 0.09462,
    "h": 202.3
  },
  "luminance": 0.39378
}

Semantic roles & 50–950 ramp

primary

#51B7BF

secondary

#CEA29E

accent

#5C52D6

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1314

muted

#7E8282

Preview Lab

Preview with #51B7BF

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

Preview Lab → · Contrast checker → · Palette generator →