#21ADA4#21ADA4

#21ADA4 is a light, moderate teal. Relative luminance 0.329; OKLCH L 67.7% C 0.112 H 188.0°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#21ADA4
RGB	rgb(33, 173, 164)
HSL	hsl(176, 68%, 40%)
HSV	hsv(176, 81%, 68%)
CMYK	cmyk(80.9%, 0%, 5.2%, 32.2%)
CIE-LAB	lab(64.07, -36.89, -5.53)
CIE-LCH	lch(64.07, 37.30, 188.53°)
OKLab	oklab(67.67% -0.1104 -0.0156)
OKLCH	oklch(67.67% 0.112 188)
XYZ	xyz(22.2684, 32.8880, 40.2891)
Luminance	0.3289 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21ADA4 #AD212A

analogous

#21AD5E #21ADA4 #2170AD

triadic

#21ADA4 #A421AD #ADA421

tetradic

#21ADA4 #5E21AD #AD212A #70AD21

square

#21ADA4 #5E21AD #AD212A #70AD21

split-complementary

#21ADA4 #AD2170 #AD5E21

monochromatic

#0D4643 #177A73 #21ADA4 #33D8CD #66E2DA

Accessibility & contrast

On white

2.77

#21ADA4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#21ADA4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21ADA4

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21ADA4	#FFFFFF	#000000	##000000
##21ADA4	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3A3A4

Deuteranopia (green-blind)

#9096A5

Tritanopia (blue-blind)

#00B2AA

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #21ada4;
/* rgb */ color: rgb(33, 173, 164);
/* oklch */ color: oklch(67.7% 0.112 188.0);

Tailwind

colors: {
  custom: {
    50: '#78c6be',
    500: '#21ada4',
    950: '#000000',
  },
}

SCSS

$custom: #21ada4;
$custom-light: #78c6be;
$custom-dark: #000000;

JSON

{
  "hex": "#21ada4",
  "rgb": {
    "r": 33,
    "g": 173,
    "b": 164
  },
  "hsl": {
    "h": 176.143,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.67667,
    "c": 0.11154,
    "h": 188
  },
  "luminance": 0.32891
}

Semantic roles & 50–950 ramp

primary

#21ADA4

secondary

#C76269

accent

#3D48EB

background

#F8FCFB

surface

#EFF8F6

border

#CAD1D0

text

#0A1312

muted

#7C8281

Preview Lab

Preview with #21ADA4

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

Preview Lab → · Contrast checker → · Palette generator →