#51BBCB#51BBCB

#51BBCB is a light, moderate teal. Relative luminance 0.416; OKLCH L 73.7% C 0.099 H 208.8°. Best body text is #000000 at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#51BBCB
RGB	rgb(81, 187, 203)
HSL	hsl(188, 54%, 56%)
HSV	hsv(188, 60%, 80%)
CMYK	cmyk(60.1%, 7.9%, 0%, 20.4%)
CIE-LAB	lab(70.59, -25.63, -17.21)
CIE-LCH	lch(70.59, 30.88, 213.88°)
OKLab	oklab(73.66% -0.0869 -0.0477)
OKLCH	oklch(73.66% 0.099 208.8)
XYZ	xyz(31.9387, 41.5985, 62.8345)
Luminance	0.4160 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBCB #CB6151

analogous

#51CB9E #51BBCB #517ECB

triadic

#51BBCB #CB51BB #BBCB51

tetradic

#51BBCB #9E51CB #CB6151 #7ECB51

square

#51BBCB #9E51CB #CB6151 #7ECB51

split-complementary

#51BBCB #CB517E #CB9E51

monochromatic

#25717C #339CAC #51BBCB #80CDD9 #AFE0E7

Accessibility & contrast

On white

2.25

#51BBCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.32

#51BBCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBCB

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBCB	#FFFFFF	#000000	##000000
##51BBCB	1.00	2.25	9.32	9.32
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.32	21.00	1.00	1.00
##000000	9.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB5CC

Deuteranopia (green-blind)

#9AA7CB

Tritanopia (blue-blind)

#00C3C0

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #51bbcb;
/* rgb */ color: rgb(81, 187, 203);
/* oklch */ color: oklch(73.7% 0.099 208.8);

Tailwind

colors: {
  custom: {
    50: '#8ecfda',
    500: '#51bbcb',
    950: '#000000',
  },
}

SCSS

$custom: #51bbcb;
$custom-light: #8ecfda;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbcb",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 203
  },
  "hsl": {
    "h": 187.869,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.73657,
    "c": 0.0991,
    "h": 208.8
  },
  "luminance": 0.41602
}

Semantic roles & 50–950 ramp

primary

#51BBCB

secondary

#D5A9A3

accent

#5E4ADD

background

#F9FCFD

surface

#F2F9FA

border

#CCD2D3

text

#0D1414

muted

#7E8283

Preview Lab

Preview with #51BBCB

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

Preview Lab → · Contrast checker → · Palette generator →