#21B378#21B378

#21B378 is a light, vivid teal. Relative luminance 0.339; OKLCH L 68.0% C 0.146 H 159.9°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#21B378
RGB	rgb(33, 179, 120)
HSL	hsl(156, 69%, 42%)
HSV	hsv(156, 82%, 70%)
CMYK	cmyk(81.6%, 0%, 33%, 29.8%)
CIE-LAB	lab(64.90, -50.63, 19.93)
CIE-LCH	lch(64.90, 54.41, 158.51°)
OKLab	oklab(67.99% -0.1374 0.0504)
OKLCH	oklch(67.99% 0.146 159.9)
XYZ	xyz(20.1353, 33.9171, 23.2511)
Luminance	0.3392 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B378 #B3215C

analogous

#21B32F #21B378 #21A5B3

triadic

#21B378 #7821B3 #B37821

tetradic

#21B378 #2F21B3 #B3215C #A5B321

square

#21B378 #2F21B3 #B3215C #A5B321

split-complementary

#21B378 #B321A5 #B32F21

monochromatic

#0E4C33 #177F55 #21B378 #37DA98 #6BE4B3

Accessibility & contrast

On white

2.70

#21B378 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#21B378 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B378

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B378	#FFFFFF	#000000	##000000
##21B378	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1A574

Deuteranopia (green-blind)

#A0997C

Tritanopia (blue-blind)

#00B2A4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #21b378;
/* rgb */ color: rgb(33, 179, 120);
/* oklch */ color: oklch(68.0% 0.146 159.9);

Tailwind

colors: {
  custom: {
    50: '#76cb9f',
    500: '#21b378',
    950: '#000000',
  },
}

SCSS

$custom: #21b378;
$custom-light: #76cb9f;
$custom-dark: #000000;

JSON

{
  "hex": "#21b378",
  "rgb": {
    "r": 33,
    "g": 179,
    "b": 120
  },
  "hsl": {
    "h": 155.753,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.67993,
    "c": 0.14631,
    "h": 159.9
  },
  "luminance": 0.3392
}

Semantic roles & 50–950 ramp

primary

#21B378

secondary

#CA668E

accent

#3C83EC

background

#F7FCF9

surface

#EEF9F2

border

#C9D2CC

text

#0A130E

muted

#7C827E

Preview Lab

Preview with #21B378

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

Preview Lab → · Contrast checker → · Palette generator →