#51B2BB#51B2BB

#51B2BB is a light, moderate teal. Relative luminance 0.372; OKLCH L 70.9% C 0.091 H 203.6°. Best body text is #000000 at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#51B2BB
RGB	rgb(81, 178, 187)
HSL	hsl(185, 44%, 53%)
HSV	hsv(185, 57%, 73%)
CMYK	cmyk(56.7%, 4.8%, 0%, 26.7%)
CIE-LAB	lab(67.41, -25.72, -13.21)
CIE-LCH	lch(67.41, 28.92, 207.19°)
OKLab	oklab(70.92% -0.0838 -0.0365)
OKLCH	oklch(70.92% 0.091 203.6)
XYZ	xyz(28.2797, 37.1752, 52.6893)
Luminance	0.3718 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B2BB #BB5A51

analogous

#51BB8F #51B2BB #517DBB

triadic

#51B2BB #BB51B2 #B2BB51

tetradic

#51B2BB #8F51BB #BB5A51 #7DBB51

square

#51B2BB #8F51BB #BB5A51 #7DBB51

split-complementary

#51B2BB #BB517D #BB8F51

monochromatic

#296369 #3A8D95 #51B2BB #7DC5CC #A9D9DD

Accessibility & contrast

On white

2.49

#51B2BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.44

#51B2BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B2BB

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B2BB	#FFFFFF	#000000	##000000
##51B2BB	1.00	2.49	8.44	8.44
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.44	21.00	1.00	1.00
##000000	8.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6ABBC

Deuteranopia (green-blind)

#959FBB

Tritanopia (blue-blind)

#00B8B4

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51b2bb;
/* rgb */ color: rgb(81, 178, 187);
/* oklch */ color: oklch(70.9% 0.091 203.6);

Tailwind

colors: {
  custom: {
    50: '#8cc9cf',
    500: '#51b2bb',
    950: '#000000',
  },
}

SCSS

$custom: #51b2bb;
$custom-light: #8cc9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#51b2bb",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 187
  },
  "hsl": {
    "h": 185.094,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70922,
    "c": 0.09138,
    "h": 203.6
  },
  "luminance": 0.37178
}

Semantic roles & 50–950 ramp

primary

#51B2BB

secondary

#CBA19D

accent

#5F54D4

background

#F9FCFC

surface

#F1F8F9

border

#CBD1D2

text

#0D1313

muted

#7E8282

Preview Lab

Preview with #51B2BB

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

Preview Lab → · Contrast checker → · Palette generator →