#51D3CF#51D3CF

#51D3CF is a light, moderate teal. Relative luminance 0.528; OKLCH L 79.5% C 0.113 H 192.3°. Best body text is #000000 at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#51D3CF
RGB	rgb(81, 211, 207)
HSL	hsl(178, 60%, 57%)
HSV	hsv(178, 62%, 83%)
CMYK	cmyk(61.6%, 0%, 1.9%, 17.3%)
CIE-LAB	lab(77.78, -36.06, -8.61)
CIE-LCH	lch(77.78, 37.07, 193.43°)
OKLab	oklab(79.5% -0.1103 -0.0239)
OKLCH	oklch(79.5% 0.113 192.3)
XYZ	xyz(37.9451, 52.8388, 67.2185)
Luminance	0.5284 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3CF #D35155

analogous

#51D38E #51D3CF #5196D3

triadic

#51D3CF #CF51D3 #D3CF51

tetradic

#51D3CF #8E51D3 #D35155 #96D351

square

#51D3CF #8E51D3 #D35155 #96D351

split-complementary

#51D3CF #D35196 #D38E51

monochromatic

#228784 #2FB8B4 #51D3CF #82DFDC #B3ECEA

Accessibility & contrast

On white

1.82

#51D3CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.57

#51D3CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3CF

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3CF	#FFFFFF	#000000	##000000
##51D3CF	1.00	1.82	11.57	11.57
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.57	21.00	1.00	1.00
##000000	11.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7C9CF

Deuteranopia (green-blind)

#B3BAD0

Tritanopia (blue-blind)

#00D9D1

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d3cf;
/* rgb */ color: rgb(81, 211, 207);
/* oklch */ color: oklch(79.5% 0.113 192.3);

Tailwind

colors: {
  custom: {
    50: '#91e1dd',
    500: '#51d3cf',
    950: '#000000',
  },
}

SCSS

$custom: #51d3cf;
$custom-light: #91e1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3cf",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 207
  },
  "hsl": {
    "h": 178.154,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.79501,
    "c": 0.11284,
    "h": 192.3
  },
  "luminance": 0.52843
}

Semantic roles & 50–950 ramp

primary

#51D3CF

secondary

#8E3A3D

accent

#454AE3

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D3CF

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

Preview Lab → · Contrast checker → · Palette generator →