#51C0CC#51C0CC

#51C0CC is a light, moderate teal. Relative luminance 0.438; OKLCH L 74.9% C 0.101 H 205.1°. Best body text is #000000 at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#51C0CC
RGB	rgb(81, 192, 204)
HSL	hsl(186, 55%, 56%)
HSV	hsv(186, 60%, 80%)
CMYK	cmyk(60.3%, 5.9%, 0%, 20%)
CIE-LAB	lab(72.10, -27.82, -15.49)
CIE-LCH	lch(72.10, 31.84, 209.10°)
OKLab	oklab(74.88% -0.0917 -0.0429)
OKLCH	oklch(74.88% 0.101 205.1)
XYZ	xyz(33.1375, 43.8048, 63.8238)
Luminance	0.4381 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C0CC #CC5D51

analogous

#51CC9A #51C0CC #5182CC

triadic

#51C0CC #CC51C0 #C0CC51

tetradic

#51C0CC #9A51CC #CC5D51 #82CC51

square

#51C0CC #9A51CC #CC5D51 #82CC51

split-complementary

#51C0CC #CC5182 #CC9A51

monochromatic

#25757E #33A1AD #51C0CC #80D1DA #B0E2E8

Accessibility & contrast

On white

2.15

#51C0CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.76

#51C0CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C0CC

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C0CC	#FFFFFF	#000000	##000000
##51C0CC	1.00	2.15	9.76	9.76
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.76	21.00	1.00	1.00
##000000	9.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2B9CD

Deuteranopia (green-blind)

#9FABCC

Tritanopia (blue-blind)

#00C7C3

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51c0cc;
/* rgb */ color: rgb(81, 192, 204);
/* oklch */ color: oklch(74.9% 0.101 205.1);

Tailwind

colors: {
  custom: {
    50: '#8fd3db',
    500: '#51c0cc',
    950: '#000000',
  },
}

SCSS

$custom: #51c0cc;
$custom-light: #8fd3db;
$custom-dark: #000000;

JSON

{
  "hex": "#51c0cc",
  "rgb": {
    "r": 81,
    "g": 192,
    "b": 204
  },
  "hsl": {
    "h": 185.854,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.7488,
    "c": 0.10128,
    "h": 205.1
  },
  "luminance": 0.43808
}

Semantic roles & 50–950 ramp

primary

#51C0CC

secondary

#D6A8A3

accent

#584ADE

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0D1415

muted

#7E8383

Preview Lab

Preview with #51C0CC

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

Preview Lab → · Contrast checker → · Palette generator →