#51B9BE#51B9BE

#51B9BE is a light, moderate teal. Relative luminance 0.402; OKLCH L 72.7% C 0.096 H 199.6°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#51B9BE
RGB	rgb(81, 185, 190)
HSL	hsl(183, 46%, 53%)
HSV	hsv(183, 57%, 75%)
CMYK	cmyk(57.4%, 2.6%, 0%, 25.5%)
CIE-LAB	lab(69.58, -28.34, -11.60)
CIE-LCH	lch(69.58, 30.63, 202.26°)
OKLab	oklab(72.71% -0.0901 -0.0321)
OKLCH	oklch(72.71% 0.096 199.6)
XYZ	xyz(30.0327, 40.1620, 54.8745)
Luminance	0.4017 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B9BE #BE5651

analogous

#51BE8C #51B9BE #5182BE

triadic

#51B9BE #BE51B9 #B9BE51

tetradic

#51B9BE #8C51BE #BE5651 #82BE51

square

#51B9BE #8C51BE #BE5651 #82BE51

split-complementary

#51B9BE #BE5182 #BE8C51

monochromatic

#28696C #399499 #51B9BE #7ECBCF #AADDDF

Accessibility & contrast

On white

2.32

#51B9BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#51B9BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B9BE

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B9BE	#FFFFFF	#000000	##000000
##51B9BE	1.00	2.32	9.03	9.03
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB1BF

Deuteranopia (green-blind)

#9CA4BF

Tritanopia (blue-blind)

#00BFBA

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #51b9be;
/* rgb */ color: rgb(81, 185, 190);
/* oklch */ color: oklch(72.7% 0.096 199.6);

Tailwind

colors: {
  custom: {
    50: '#8dced1',
    500: '#51b9be',
    950: '#000000',
  },
}

SCSS

$custom: #51b9be;
$custom-light: #8dced1;
$custom-dark: #000000;

JSON

{
  "hex": "#51b9be",
  "rgb": {
    "r": 81,
    "g": 185,
    "b": 190
  },
  "hsl": {
    "h": 182.752,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.72707,
    "c": 0.09566,
    "h": 199.6
  },
  "luminance": 0.40165
}

Semantic roles & 50–950 ramp

primary

#51B9BE

secondary

#CDA09E

accent

#5953D5

background

#F9FCFC

surface

#F1F9F9

border

#CBD2D2

text

#0D1314

muted

#7E8282

Preview Lab

Preview with #51B9BE

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

Preview Lab → · Contrast checker → · Palette generator →