#21D3D4#21D3D4

#21D3D4 is a light, vivid teal. Relative luminance 0.517; OKLCH L 78.7% C 0.130 H 195.5°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#21D3D4
RGB	rgb(33, 211, 212)
HSL	hsl(180, 73%, 48%)
HSV	hsv(180, 84%, 83%)
CMYK	cmyk(84.4%, 0.5%, 0%, 16.9%)
CIE-LAB	lab(77.08, -40.11, -12.43)
CIE-LCH	lch(77.08, 41.99, 197.22°)
OKLab	oklab(78.74% -0.1251 -0.0346)
OKLCH	oklch(78.74% 0.13 195.5)
XYZ	xyz(35.7995, 51.6607, 70.3593)
Luminance	0.5167 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21D3D4 #D42221

analogous

#21D47B #21D3D4 #217AD4

triadic

#21D3D4 #D421D3 #D3D421

tetradic

#21D3D4 #7B21D4 #D42221 #7AD421

square

#21D3D4 #7B21D4 #D42221 #7AD421

split-complementary

#21D3D4 #D4217A #D47B21

monochromatic

#116A6A #199E9F #21D3D4 #4FE3E4 #84EBEC

Accessibility & contrast

On white

1.85

#21D3D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.33

#21D3D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21D3D4

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21D3D4	#FFFFFF	#000000	##000000
##21D3D4	1.00	1.85	11.33	11.33
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.33	21.00	1.00	1.00
##000000	11.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4C8D4

Deuteranopia (green-blind)

#ADB7D5

Tritanopia (blue-blind)

#00DAD3

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #21d3d4;
/* rgb */ color: rgb(33, 211, 212);
/* oklch */ color: oklch(78.7% 0.130 195.5);

Tailwind

colors: {
  custom: {
    50: '#82e1e1',
    500: '#21d3d4',
    950: '#000000',
  },
}

SCSS

$custom: #21d3d4;
$custom-light: #82e1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#21d3d4",
  "rgb": {
    "r": 33,
    "g": 211,
    "b": 212
  },
  "hsl": {
    "h": 180.335,
    "s": 73.061,
    "l": 48.039
  },
  "oklch": {
    "l": 0.78736,
    "c": 0.12979,
    "h": 195.5
  },
  "luminance": 0.51665
}

Semantic roles & 50–950 ramp

primary

#21D3D4

secondary

#742625

accent

#3938F0

background

#FCFEFE

surface

#F4FCFC

border

#CED5D5

text

#0D1515

muted

#7F8484

Preview Lab

Preview with #21D3D4

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

Preview Lab → · Contrast checker → · Palette generator →