#21B379#21B379

#21B379 is a light, vivid teal. Relative luminance 0.339; OKLCH L 68.0% C 0.145 H 160.3°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#21B379
RGB	rgb(33, 179, 121)
HSL	hsl(156, 69%, 42%)
HSV	hsv(156, 82%, 70%)
CMYK	cmyk(81.6%, 0%, 32.4%, 29.8%)
CIE-LAB	lab(64.92, -50.41, 19.42)
CIE-LCH	lch(64.92, 54.02, 158.93°)
OKLab	oklab(68.02% -0.1369 0.0491)
OKLCH	oklch(68.02% 0.145 160.3)
XYZ	xyz(20.1963, 33.9415, 23.5724)
Luminance	0.3394 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B379 #B3215B

analogous

#21B330 #21B379 #21A4B3

triadic

#21B379 #7921B3 #B37921

tetradic

#21B379 #3021B3 #B3215B #A4B321

square

#21B379 #3021B3 #B3215B #A4B321

split-complementary

#21B379 #B321A4 #B33021

monochromatic

#0E4C33 #177F56 #21B379 #37DA99 #6BE4B4

Accessibility & contrast

On white

2.70

#21B379 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#21B379 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B379

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B379	#FFFFFF	#000000	##000000
##21B379	1.00	2.70	7.79	7.79
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.79	21.00	1.00	1.00
##000000	7.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1A575

Deuteranopia (green-blind)

#A0997D

Tritanopia (blue-blind)

#00B2A4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #21b379;
/* rgb */ color: rgb(33, 179, 121);
/* oklch */ color: oklch(68.0% 0.145 160.3);

Tailwind

colors: {
  custom: {
    50: '#77cba0',
    500: '#21b379',
    950: '#000000',
  },
}

SCSS

$custom: #21b379;
$custom-light: #77cba0;
$custom-dark: #000000;

JSON

{
  "hex": "#21b379",
  "rgb": {
    "r": 33,
    "g": 179,
    "b": 121
  },
  "hsl": {
    "h": 156.164,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.68015,
    "c": 0.14543,
    "h": 160.3
  },
  "luminance": 0.33944
}

Semantic roles & 50–950 ramp

primary

#21B379

secondary

#CA668E

accent

#3C82EC

background

#F7FCF9

surface

#EEF9F2

border

#C9D2CC

text

#0A130E

muted

#7C827E

Preview Lab

Preview with #21B379

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

Preview Lab → · Contrast checker → · Palette generator →