#51BBCD#51BBCD

#51BBCD is a light, moderate teal. Relative luminance 0.417; OKLCH L 73.7% C 0.100 H 210.4°. Best body text is #000000 at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#51BBCD
RGB	rgb(81, 187, 205)
HSL	hsl(189, 55%, 56%)
HSV	hsv(189, 60%, 80%)
CMYK	cmyk(60.5%, 8.8%, 0%, 19.6%)
CIE-LAB	lab(70.66, -25.05, -18.21)
CIE-LCH	lch(70.66, 30.97, 216.01°)
OKLab	oklab(73.73% -0.0861 -0.0505)
OKLCH	oklch(73.73% 0.1 210.4)
XYZ	xyz(32.1786, 41.6945, 64.0978)
Luminance	0.4170 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBCD #CD6351

analogous

#51CDA1 #51BBCD #517DCD

triadic

#51BBCD #CD51BB #BBCD51

tetradic

#51BBCD #A151CD #CD6351 #7DCD51

square

#51BBCD #A151CD #CD6351 #7DCD51

split-complementary

#51BBCD #CD517D #CDA151

monochromatic

#25727F #329DAF #51BBCD #81CEDB #B0E0E8

Accessibility & contrast

On white

2.25

#51BBCD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.34

#51BBCD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBCD

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBCD	#FFFFFF	#000000	##000000
##51BBCD	1.00	2.25	9.34	9.34
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.34	21.00	1.00	1.00
##000000	9.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB5CE

Deuteranopia (green-blind)

#99A7CD

Tritanopia (blue-blind)

#00C3C0

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #51bbcd;
/* rgb */ color: rgb(81, 187, 205);
/* oklch */ color: oklch(73.7% 0.100 210.4);

Tailwind

colors: {
  custom: {
    50: '#8ecfdc',
    500: '#51bbcd',
    950: '#000000',
  },
}

SCSS

$custom: #51bbcd;
$custom-light: #8ecfdc;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbcd",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 205
  },
  "hsl": {
    "h": 188.71,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.73733,
    "c": 0.09977,
    "h": 210.4
  },
  "luminance": 0.41698
}

Semantic roles & 50–950 ramp

primary

#51BBCD

secondary

#D7ABA3

accent

#5F49DF

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BBCD

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

Preview Lab → · Contrast checker → · Palette generator →