#21ADB3#21ADB3

#21ADB3 is a light, moderate teal. Relative luminance 0.335; OKLCH L 68.2% C 0.110 H 199.5°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#21ADB3
RGB	rgb(33, 173, 179)
HSL	hsl(182, 69%, 42%)
HSV	hsv(182, 82%, 70%)
CMYK	cmyk(81.6%, 3.4%, 0%, 29.8%)
CIE-LAB	lab(64.53, -32.40, -13.20)
CIE-LCH	lch(64.53, 34.99, 202.17°)
OKLab	oklab(68.2% -0.1037 -0.0367)
OKLCH	oklch(68.2% 0.11 199.5)
XYZ	xyz(23.7037, 33.4621, 47.8486)
Luminance	0.3347 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21ADB3 #B32721

analogous

#21B370 #21ADB3 #2164B3

triadic

#21ADB3 #B321AD #ADB321

tetradic

#21ADB3 #7021B3 #B32721 #64B321

square

#21ADB3 #7021B3 #B32721 #64B321

split-complementary

#21ADB3 #B32164 #B37021

monochromatic

#0E494C #177B7F #21ADB3 #37D3DA #6BDFE4

Accessibility & contrast

On white

2.73

#21ADB3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#21ADB3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21ADB3

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21ADB3	#FFFFFF	#000000	##000000
##21ADB3	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0A5B4

Deuteranopia (green-blind)

#8C96B4

Tritanopia (blue-blind)

#00B4AF

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #21adb3;
/* rgb */ color: rgb(33, 173, 179);
/* oklch */ color: oklch(68.2% 0.110 199.5);

Tailwind

colors: {
  custom: {
    50: '#79c6c9',
    500: '#21adb3',
    950: '#000000',
  },
}

SCSS

$custom: #21adb3;
$custom-light: #79c6c9;
$custom-dark: #000000;

JSON

{
  "hex": "#21adb3",
  "rgb": {
    "r": 33,
    "g": 173,
    "b": 179
  },
  "hsl": {
    "h": 182.466,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68198,
    "c": 0.11,
    "h": 199.5
  },
  "luminance": 0.33465
}

Semantic roles & 50–950 ramp

primary

#21ADB3

secondary

#CA6A66

accent

#433CEC

background

#F8FCFC

surface

#EFF8F8

border

#CAD1D1

text

#0B1313

muted

#7C8282

Preview Lab

Preview with #21ADB3

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

Preview Lab → · Contrast checker → · Palette generator →