#21B491#21B491

#21B491 is a light, vivid teal. Relative luminance 0.350; OKLCH L 68.9% C 0.128 H 171.4°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#21B491
RGB	rgb(33, 180, 145)
HSL	hsl(166, 69%, 42%)
HSV	hsv(166, 82%, 71%)
CMYK	cmyk(81.7%, 0%, 19.4%, 29.4%)
CIE-LAB	lab(65.75, -45.13, 7.46)
CIE-LCH	lch(65.75, 45.75, 170.61°)
OKLab	oklab(68.88% -0.1263 0.019)
OKLCH	oklch(68.88% 0.128 171.4)
XYZ	xyz(22.0565, 35.0074, 32.3772)
Luminance	0.3501 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B491 #B42144

analogous

#21B447 #21B491 #218EB4

triadic

#21B491 #9121B4 #B49121

tetradic

#21B491 #4721B4 #B42144 #8EB421

square

#21B491 #4721B4 #B42144 #8EB421

split-complementary

#21B491 #B4218E #B44721

monochromatic

#0E4D3E #188067 #21B491 #38DAB4 #6BE4C7

Accessibility & contrast

On white

2.62

#21B491 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#21B491 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B491

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B491	#FFFFFF	#000000	##000000
##21B491	1.00	2.62	8.00	8.00
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEA78F

Deuteranopia (green-blind)

#9C9A93

Tritanopia (blue-blind)

#00B6AA

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #21b491;
/* rgb */ color: rgb(33, 180, 145);
/* oklch */ color: oklch(68.9% 0.128 171.4);

Tailwind

colors: {
  custom: {
    50: '#78cbb1',
    500: '#21b491',
    950: '#000000',
  },
}

SCSS

$custom: #21b491;
$custom-light: #78cbb1;
$custom-dark: #000000;

JSON

{
  "hex": "#21b491",
  "rgb": {
    "r": 33,
    "g": 180,
    "b": 145
  },
  "hsl": {
    "h": 165.714,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.68877,
    "c": 0.1277,
    "h": 171.4
  },
  "luminance": 0.3501
}

Semantic roles & 50–950 ramp

primary

#21B491

secondary

#CA677E

accent

#3C66EC

background

#F8FCFA

surface

#EFF9F5

border

#CAD2CF

text

#0A1310

muted

#7C827F

Preview Lab

Preview with #21B491

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

Preview Lab → · Contrast checker → · Palette generator →