#21B243#21B243

#21B243 is a light, vivid green. Relative luminance 0.326; OKLCH L 66.8% C 0.192 H 146.3°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#21B243
RGB	rgb(33, 178, 67)
HSL	hsl(134, 69%, 41%)
HSV	hsv(134, 81%, 70%)
CMYK	cmyk(81.5%, 0%, 62.4%, 30.2%)
CIE-LAB	lab(63.81, -59.23, 45.40)
CIE-LCH	lch(63.81, 74.63, 142.53°)
OKLab	oklab(66.84% -0.1594 0.1064)
OKLCH	oklch(66.84% 0.192 146.3)
XYZ	xyz(17.5594, 32.5672, 10.6698)
Luminance	0.3257 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B243 #B22190

analogous

#48B221 #21B243 #21B28C

triadic

#21B243 #4321B2 #B24321

tetradic

#21B243 #2148B2 #B22190 #B28C21

square

#21B243 #2148B2 #B22190 #B28C21

split-complementary

#21B243 #8C21B2 #B22148

monochromatic

#0E4B1C #177E30 #21B243 #36DA5D #6AE386

Accessibility & contrast

On white

2.79

#21B243 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#21B243 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B243

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B243	#FFFFFF	#000000	##000000
##21B243	1.00	2.79	7.51	7.51
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.51	21.00	1.00	1.00
##000000	7.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A137

Deuteranopia (green-blind)

#A5964D

Tritanopia (blue-blind)

#00AE9A

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #21b243;
/* rgb */ color: rgb(33, 178, 67);
/* oklch */ color: oklch(66.8% 0.192 146.3);

Tailwind

colors: {
  custom: {
    50: '#77ca7b',
    500: '#21b243',
    950: '#000000',
  },
}

SCSS

$custom: #21b243;
$custom-light: #77ca7b;
$custom-dark: #000000;

JSON

{
  "hex": "#21b243",
  "rgb": {
    "r": 33,
    "g": 178,
    "b": 67
  },
  "hsl": {
    "h": 134.069,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.66843,
    "c": 0.19164,
    "h": 146.3
  },
  "luminance": 0.32569
}

Semantic roles & 50–950 ramp

primary

#21B243

secondary

#C966B2

accent

#3CC2EC

background

#F8FCF7

surface

#EFF9EE

border

#CAD2C9

text

#0A130A

muted

#7C827C

Preview Lab

Preview with #21B243

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

Preview Lab → · Contrast checker → · Palette generator →