#21ADA8#21ADA8

#21ADA8 is a light, moderate teal. Relative luminance 0.330; OKLCH L 67.8% C 0.111 H 191.0°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#21ADA8
RGB	rgb(33, 173, 168)
HSL	hsl(178, 68%, 40%)
HSV	hsv(178, 81%, 68%)
CMYK	cmyk(80.9%, 0%, 2.9%, 32.2%)
CIE-LAB	lab(64.19, -35.72, -7.59)
CIE-LCH	lch(64.19, 36.52, 191.99°)
OKLab	oklab(67.8% -0.1086 -0.0212)
OKLCH	oklch(67.8% 0.111 191)
XYZ	xyz(22.6353, 33.0348, 42.2216)
Luminance	0.3304 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21ADA8 #AD2126

analogous

#21AD62 #21ADA8 #216CAD

triadic

#21ADA8 #A821AD #ADA821

tetradic

#21ADA8 #6221AD #AD2126 #6CAD21

square

#21ADA8 #6221AD #AD2126 #6CAD21

split-complementary

#21ADA8 #AD216C #AD6221

monochromatic

#0D4644 #177A76 #21ADA8 #33D8D2 #66E2DE

Accessibility & contrast

On white

2.76

#21ADA8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.61

#21ADA8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21ADA8

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21ADA8	#FFFFFF	#000000	##000000
##21ADA8	1.00	2.76	7.61	7.61
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.61	21.00	1.00	1.00
##000000	7.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2A4A8

Deuteranopia (green-blind)

#8F96A9

Tritanopia (blue-blind)

#00B2AB

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #21ada8;
/* rgb */ color: rgb(33, 173, 168);
/* oklch */ color: oklch(67.8% 0.111 191.0);

Tailwind

colors: {
  custom: {
    50: '#78c6c1',
    500: '#21ada8',
    950: '#000000',
  },
}

SCSS

$custom: #21ada8;
$custom-light: #78c6c1;
$custom-dark: #000000;

JSON

{
  "hex": "#21ada8",
  "rgb": {
    "r": 33,
    "g": 173,
    "b": 168
  },
  "hsl": {
    "h": 177.857,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.67804,
    "c": 0.11066,
    "h": 191
  },
  "luminance": 0.33038
}

Semantic roles & 50–950 ramp

primary

#21ADA8

secondary

#C76266

accent

#3D43EB

background

#F8FCFB

surface

#EFF8F7

border

#CAD1D0

text

#0B1312

muted

#7C8281

Preview Lab

Preview with #21ADA8

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

Preview Lab → · Contrast checker → · Palette generator →