#51BBCC#51BBCC

#51BBCC is a light, moderate teal. Relative luminance 0.416; OKLCH L 73.7% C 0.099 H 209.6°. Best body text is #000000 at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#51BBCC
RGB	rgb(81, 187, 204)
HSL	hsl(188, 55%, 56%)
HSV	hsv(188, 60%, 80%)
CMYK	cmyk(60.3%, 8.3%, 0%, 20%)
CIE-LAB	lab(70.63, -25.34, -17.71)
CIE-LCH	lch(70.63, 30.92, 214.95°)
OKLab	oklab(73.69% -0.0865 -0.0491)
OKLCH	oklch(73.69% 0.099 209.6)
XYZ	xyz(32.0582, 41.6463, 63.4641)
Luminance	0.4165 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BBCC #CC6251

analogous

#51CC9F #51BBCC #517DCC

triadic

#51BBCC #CC51BB #BBCC51

tetradic

#51BBCC #9F51CC #CC6251 #7DCC51

square

#51BBCC #9F51CC #CC6251 #7DCC51

split-complementary

#51BBCC #CC517D #CC9F51

monochromatic

#25717E #339CAD #51BBCC #80CDDA #B0E0E8

Accessibility & contrast

On white

2.25

#51BBCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.33

#51BBCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BBCC

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BBCC	#FFFFFF	#000000	##000000
##51BBCC	1.00	2.25	9.33	9.33
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.33	21.00	1.00	1.00
##000000	9.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACB5CD

Deuteranopia (green-blind)

#99A7CC

Tritanopia (blue-blind)

#00C3C0

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #51bbcc;
/* rgb */ color: rgb(81, 187, 204);
/* oklch */ color: oklch(73.7% 0.099 209.6);

Tailwind

colors: {
  custom: {
    50: '#8ecfdb',
    500: '#51bbcc',
    950: '#000000',
  },
}

SCSS

$custom: #51bbcc;
$custom-light: #8ecfdb;
$custom-dark: #000000;

JSON

{
  "hex": "#51bbcc",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 204
  },
  "hsl": {
    "h": 188.293,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.73695,
    "c": 0.09942,
    "h": 209.6
  },
  "luminance": 0.4165
}

Semantic roles & 50–950 ramp

primary

#51BBCC

secondary

#D6AAA3

accent

#5E4ADE

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BBCC

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

Preview Lab → · Contrast checker → · Palette generator →