#51BDCC#51BDCC

#51BDCC is a light, moderate teal. Relative luminance 0.425; OKLCH L 74.2% C 0.100 H 207.7°. Best body text is #000000 at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#51BDCC
RGB	rgb(81, 189, 204)
HSL	hsl(187, 55%, 56%)
HSV	hsv(187, 60%, 80%)
CMYK	cmyk(60.3%, 7.4%, 0%, 20%)
CIE-LAB	lab(71.21, -26.34, -16.82)
CIE-LCH	lch(71.21, 31.25, 212.56°)
OKLab	oklab(74.17% -0.0886 -0.0466)
OKLCH	oklch(74.17% 0.1 207.7)
XYZ	xyz(32.4855, 42.5008, 63.6065)
Luminance	0.4250 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BDCC #CC6051

analogous

#51CC9D #51BDCC #517FCC

triadic

#51BDCC #CC51BD #BDCC51

tetradic

#51BDCC #9D51CC #CC6051 #7FCC51

square

#51BDCC #9D51CC #CC6051 #7FCC51

split-complementary

#51BDCC #CC517F #CC9D51

monochromatic

#25737E #339EAD #51BDCC #80CFDA #B0E1E8

Accessibility & contrast

On white

2.21

#51BDCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.50

#51BDCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BDCC

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BDCC	#FFFFFF	#000000	##000000
##51BDCC	1.00	2.21	9.50	9.50
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.50	21.00	1.00	1.00
##000000	9.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEB6CD

Deuteranopia (green-blind)

#9CA8CC

Tritanopia (blue-blind)

#00C5C1

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51bdcc;
/* rgb */ color: rgb(81, 189, 204);
/* oklch */ color: oklch(74.2% 0.100 207.7);

Tailwind

colors: {
  custom: {
    50: '#8ed1db',
    500: '#51bdcc',
    950: '#000000',
  },
}

SCSS

$custom: #51bdcc;
$custom-light: #8ed1db;
$custom-dark: #000000;

JSON

{
  "hex": "#51bdcc",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 204
  },
  "hsl": {
    "h": 187.317,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.74169,
    "c": 0.10009,
    "h": 207.7
  },
  "luminance": 0.42504
}

Semantic roles & 50–950 ramp

primary

#51BDCC

secondary

#D6A9A3

accent

#5C4ADE

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #51BDCC

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

Preview Lab → · Contrast checker → · Palette generator →