#21B23C#21B23C

#21B23C is a light, vivid green. Relative luminance 0.325; OKLCH L 66.8% C 0.197 H 145.3°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#21B23C
RGB	rgb(33, 178, 60)
HSL	hsl(131, 69%, 41%)
HSV	hsv(131, 81%, 70%)
CMYK	cmyk(81.5%, 0%, 66.3%, 30.2%)
CIE-LAB	lab(63.74, -60.03, 48.38)
CIE-LCH	lch(63.74, 77.10, 141.13°)
OKLab	oklab(66.77% -0.1618 0.1121)
OKLCH	oklch(66.77% 0.197 145.3)
XYZ	xyz(17.3619, 32.4882, 9.6299)
Luminance	0.3249 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21B23C #B22197

analogous

#4FB221 #21B23C #21B285

triadic

#21B23C #3C21B2 #B23C21

tetradic

#21B23C #214FB2 #B22197 #B28521

square

#21B23C #214FB2 #B22197 #B28521

split-complementary

#21B23C #8521B2 #B2214F

monochromatic

#0E4B19 #177E2B #21B23C #36DA55 #6AE381

Accessibility & contrast

On white

2.80

#21B23C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#21B23C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #21B23C

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21B23C	#FFFFFF	#000000	##000000
##21B23C	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A12D

Deuteranopia (green-blind)

#A59647

Tritanopia (blue-blind)

#00AD9A

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #21b23c;
/* rgb */ color: rgb(33, 178, 60);
/* oklch */ color: oklch(66.8% 0.197 145.3);

Tailwind

colors: {
  custom: {
    50: '#78ca77',
    500: '#21b23c',
    950: '#000000',
  },
}

SCSS

$custom: #21b23c;
$custom-light: #78ca77;
$custom-dark: #000000;

JSON

{
  "hex": "#21b23c",
  "rgb": {
    "r": 33,
    "g": 178,
    "b": 60
  },
  "hsl": {
    "h": 131.172,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.66768,
    "c": 0.19681,
    "h": 145.3
  },
  "luminance": 0.3249
}

Semantic roles & 50–950 ramp

primary

#21B23C

secondary

#C966B7

accent

#3CCBEC

background

#F8FCF7

surface

#EFF9ED

border

#CAD2C8

text

#0B1309

muted

#7C827B

Preview Lab

Preview with #21B23C

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

Preview Lab → · Contrast checker → · Palette generator →