#21B371#21B371

#21B371 is a light, vivid teal. Relative luminance 0.338; OKLCH L 67.8% C 0.153 H 157.2°. Best body text is #000000 at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#21B371
RGB	rgb(33, 179, 113)
HSL	hsl(153, 69%, 42%)
HSV	hsv(153, 82%, 70%)
CMYK	cmyk(81.6%, 0%, 36.9%, 29.8%)
CIE-LAB	lab(64.77, -52.10, 23.52)
CIE-LCH	lch(64.77, 57.16, 155.70°)
OKLab	oklab(67.84% -0.1407 0.059)
OKLCH	oklch(67.84% 0.153 157.2)
XYZ	xyz(19.7259, 33.7533, 21.0950)
Luminance	0.3376 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B371 #B32163

analogous

#21B328 #21B371 #21ACB3

triadic

#21B371 #7121B3 #B37121

tetradic

#21B371 #2821B3 #B32163 #ACB321

square

#21B371 #2821B3 #B32163 #ACB321

split-complementary

#21B371 #B321AC #B32821

monochromatic

#0E4C30 #177F50 #21B371 #37DA90 #6BE4AD

Accessibility & contrast

On white

2.71

#21B371 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.75

#21B371 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B371

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B371	#FFFFFF	#000000	##000000
##21B371	1.00	2.71	7.75	7.75
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.75	21.00	1.00	1.00
##000000	7.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2A46D

Deuteranopia (green-blind)

#A19875

Tritanopia (blue-blind)

#00B2A2

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #21b371;
/* rgb */ color: rgb(33, 179, 113);
/* oklch */ color: oklch(67.8% 0.153 157.2);

Tailwind

colors: {
  custom: {
    50: '#76cb9a',
    500: '#21b371',
    950: '#000000',
  },
}

SCSS

$custom: #21b371;
$custom-light: #76cb9a;
$custom-dark: #000000;

JSON

{
  "hex": "#21b371",
  "rgb": {
    "r": 33,
    "g": 179,
    "b": 113
  },
  "hsl": {
    "h": 152.877,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.67843,
    "c": 0.15257,
    "h": 157.2
  },
  "luminance": 0.33756
}

Semantic roles & 50–950 ramp

primary

#21B371

secondary

#CA6693

accent

#3C8BEC

background

#F7FCF9

surface

#EEF9F2

border

#C9D2CC

text

#0A130E

muted

#7C827E

Preview Lab

Preview with #21B371

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

Preview Lab → · Contrast checker → · Palette generator →