#51B0BB#51B0BB

#51B0BB is a light, moderate teal. Relative luminance 0.364; OKLCH L 70.4% C 0.090 H 205.6°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#51B0BB
RGB	rgb(81, 176, 187)
HSL	hsl(186, 44%, 53%)
HSV	hsv(186, 57%, 73%)
CMYK	cmyk(56.7%, 5.9%, 0%, 26.7%)
CIE-LAB	lab(66.81, -24.72, -14.11)
CIE-LCH	lch(66.81, 28.46, 209.71°)
OKLab	oklab(70.44% -0.0816 -0.039)
OKLCH	oklch(70.44% 0.09 205.6)
XYZ	xyz(27.8846, 36.3851, 52.5576)
Luminance	0.3639 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B0BB #BB5C51

analogous

#51BB91 #51B0BB #517BBB

triadic

#51B0BB #BB51B0 #B0BB51

tetradic

#51B0BB #9151BB #BB5C51 #7BBB51

square

#51B0BB #9151BB #BB5C51 #7BBB51

split-complementary

#51B0BB #BB517B #BB9151

monochromatic

#296269 #3A8B95 #51B0BB #7DC4CC #A9D8DD

Accessibility & contrast

On white

2.54

#51B0BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#51B0BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B0BB

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B0BB	#FFFFFF	#000000	##000000
##51B0BB	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AABC

Deuteranopia (green-blind)

#939DBB

Tritanopia (blue-blind)

#00B7B3

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51b0bb;
/* rgb */ color: rgb(81, 176, 187);
/* oklch */ color: oklch(70.4% 0.090 205.6);

Tailwind

colors: {
  custom: {
    50: '#8cc8cf',
    500: '#51b0bb',
    950: '#000000',
  },
}

SCSS

$custom: #51b0bb;
$custom-light: #8cc8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#51b0bb",
  "rgb": {
    "r": 81,
    "g": 176,
    "b": 187
  },
  "hsl": {
    "h": 186.226,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70443,
    "c": 0.09041,
    "h": 205.6
  },
  "luminance": 0.36388
}

Semantic roles & 50–950 ramp

primary

#51B0BB

secondary

#CBA29D

accent

#6154D4

background

#F9FCFC

surface

#F1F8F9

border

#CBD1D2

text

#0D1313

muted

#7E8282

Preview Lab

Preview with #51B0BB

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

Preview Lab → · Contrast checker → · Palette generator →