#51B4BE#51B4BE

#51B4BE is a light, moderate teal. Relative luminance 0.381; OKLCH L 71.5% C 0.093 H 204.3°. Best body text is #000000 at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#51B4BE
RGB	rgb(81, 180, 190)
HSL	hsl(186, 46%, 53%)
HSV	hsv(186, 57%, 75%)
CMYK	cmyk(57.4%, 5.3%, 0%, 25.5%)
CIE-LAB	lab(68.10, -25.87, -13.83)
CIE-LCH	lch(68.10, 29.33, 208.13°)
OKLab	oklab(71.51% -0.0847 -0.0382)
OKLCH	oklch(71.51% 0.093 204.3)
XYZ	xyz(29.0050, 38.1067, 54.5320)
Luminance	0.3811 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B4BE #BE5B51

analogous

#51BE92 #51B4BE #517DBE

triadic

#51B4BE #BE51B4 #B4BE51

tetradic

#51B4BE #9251BE #BE5B51 #7DBE51

square

#51B4BE #9251BE #BE5B51 #7DBE51

split-complementary

#51B4BE #BE517D #BE9251

monochromatic

#28666C #399099 #51B4BE #7EC7CF #AADADF

Accessibility & contrast

On white

2.44

#51B4BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.62

#51B4BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B4BE

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B4BE	#FFFFFF	#000000	##000000
##51B4BE	1.00	2.44	8.62	8.62
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.62	21.00	1.00	1.00
##000000	8.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7ADBF

Deuteranopia (green-blind)

#96A1BE

Tritanopia (blue-blind)

#00BBB7

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51b4be;
/* rgb */ color: rgb(81, 180, 190);
/* oklch */ color: oklch(71.5% 0.093 204.3);

Tailwind

colors: {
  custom: {
    50: '#8ccad1',
    500: '#51b4be',
    950: '#000000',
  },
}

SCSS

$custom: #51b4be;
$custom-light: #8ccad1;
$custom-dark: #000000;

JSON

{
  "hex": "#51b4be",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 190
  },
  "hsl": {
    "h": 185.505,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.7151,
    "c": 0.09293,
    "h": 204.3
  },
  "luminance": 0.3811
}

Semantic roles & 50–950 ramp

primary

#51B4BE

secondary

#CDA29E

accent

#5F53D5

background

#F9FCFC

surface

#F1F8F9

border

#CBD1D2

text

#0D1314

muted

#7E8282

Preview Lab

Preview with #51B4BE

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

Preview Lab → · Contrast checker → · Palette generator →