#51C8CF#51C8CF

#51C8CF is a light, moderate teal. Relative luminance 0.476; OKLCH L 76.9% C 0.106 H 200.6°. Best body text is #000000 at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#51C8CF
RGB	rgb(81, 200, 207)
HSL	hsl(183, 57%, 56%)
HSV	hsv(183, 61%, 81%)
CMYK	cmyk(60.9%, 3.4%, 0%, 18.8%)
CIE-LAB	lab(74.55, -30.86, -13.44)
CIE-LCH	lch(74.55, 33.66, 203.53°)
OKLab	oklab(76.89% -0.0989 -0.0372)
OKLCH	oklch(76.89% 0.106 200.6)
XYZ	xyz(35.3053, 47.5592, 66.3386)
Luminance	0.4756 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8CF #CF5851

analogous

#51CF97 #51C8CF #5189CF

triadic

#51C8CF #CF51C8 #C8CF51

tetradic

#51C8CF #9751CF #CF5851 #89CF51

square

#51C8CF #9751CF #CF5851 #89CF51

split-complementary

#51C8CF #CF5189 #CF9751

monochromatic

#247D82 #31ABB2 #51C8CF #81D7DC #B1E6E9

Accessibility & contrast

On white

2.00

#51C8CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.51

#51C8CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8CF

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8CF	#FFFFFF	#000000	##000000
##51C8CF	1.00	2.00	10.51	10.51
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.51	21.00	1.00	1.00
##000000	10.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAC0D0

Deuteranopia (green-blind)

#A7B1D0

Tritanopia (blue-blind)

#00CFCA

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #51c8cf;
/* rgb */ color: rgb(81, 200, 207);
/* oklch */ color: oklch(76.9% 0.106 200.6);

Tailwind

colors: {
  custom: {
    50: '#8fd9dd',
    500: '#51c8cf',
    950: '#000000',
  },
}

SCSS

$custom: #51c8cf;
$custom-light: #8fd9dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8cf",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 207
  },
  "hsl": {
    "h": 183.333,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.76886,
    "c": 0.10566,
    "h": 200.6
  },
  "luminance": 0.47563
}

Semantic roles & 50–950 ramp

primary

#51C8CF

secondary

#D8A7A4

accent

#5048E0

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0E1415

muted

#7E8383

Preview Lab

Preview with #51C8CF

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

Preview Lab → · Contrast checker → · Palette generator →