#51B8BF#51B8BF

#51B8BF is a light, moderate teal. Relative luminance 0.398; OKLCH L 72.5% C 0.095 H 201.4°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#51B8BF
RGB	rgb(81, 184, 191)
HSL	hsl(184, 46%, 53%)
HSV	hsv(184, 58%, 75%)
CMYK	cmyk(57.6%, 3.7%, 0%, 25.1%)
CIE-LAB	lab(69.32, -27.57, -12.55)
CIE-LCH	lch(69.32, 30.29, 204.47°)
OKLab	oklab(72.5% -0.0886 -0.0347)
OKLCH	oklch(72.5% 0.095 201.4)
XYZ	xyz(29.9339, 39.7889, 55.3826)
Luminance	0.3979 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B8BF #BF5851

analogous

#51BF8F #51B8BF #5181BF

triadic

#51B8BF #BF51B8 #B8BF51

tetradic

#51B8BF #8F51BF #BF5851 #81BF51

square

#51B8BF #8F51BF #BF5851 #81BF51

split-complementary

#51B8BF #BF5181 #BF8F51

monochromatic

#28696D #39949A #51B8BF #7ECACF #AADDE0

Accessibility & contrast

On white

2.34

#51B8BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#51B8BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B8BF

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B8BF	#FFFFFF	#000000	##000000
##51B8BF	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB1C0

Deuteranopia (green-blind)

#9AA4C0

Tritanopia (blue-blind)

#00BEBA

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51b8bf;
/* rgb */ color: rgb(81, 184, 191);
/* oklch */ color: oklch(72.5% 0.095 201.4);

Tailwind

colors: {
  custom: {
    50: '#8dcdd2',
    500: '#51b8bf',
    950: '#000000',
  },
}

SCSS

$custom: #51b8bf;
$custom-light: #8dcdd2;
$custom-dark: #000000;

JSON

{
  "hex": "#51b8bf",
  "rgb": {
    "r": 81,
    "g": 184,
    "b": 191
  },
  "hsl": {
    "h": 183.818,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72503,
    "c": 0.09517,
    "h": 201.4
  },
  "luminance": 0.39792
}

Semantic roles & 50–950 ramp

primary

#51B8BF

secondary

#CEA19E

accent

#5A52D6

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1314

muted

#7E8282

Preview Lab

Preview with #51B8BF

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

Preview Lab → · Contrast checker → · Palette generator →