#18B421#18B421

#18B421 is a light, highly saturated green. Relative luminance 0.329; OKLCH L 67.0% C 0.216 H 143.1°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#18B421
RGB	rgb(24, 180, 33)
HSL	hsl(123, 76%, 40%)
HSV	hsv(123, 87%, 71%)
CMYK	cmyk(86.7%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(64.12, -63.77, 58.38)
CIE-LCH	lch(64.12, 86.46, 137.53°)
OKLab	oklab(66.99% -0.1728 0.1296)
OKLCH	oklch(66.99% 0.216 143.1)
XYZ	xyz(16.9713, 32.9444, 6.9030)
Luminance	0.3295 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18B421 #B418AB

analogous

#5DB418 #18B421 #18B46F

triadic

#18B421 #2118B4 #B42118

tetradic

#18B421 #185DB4 #B418AB #B46F18

square

#18B421 #185DB4 #B418AB #B46F18

split-complementary

#18B421 #6F18B4 #B4185D

monochromatic

#0A480D #117E17 #18B421 #27E232 #5DE965

Accessibility & contrast

On white

2.77

#18B421 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.59

#18B421 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #18B421

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18B421	#FFFFFF	#000000	##000000
##18B421	1.00	2.77	7.59	7.59
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.59	21.00	1.00	1.00
##000000	7.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#A89734

Tritanopia (blue-blind)

#00AF99

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #18b421;
/* rgb */ color: rgb(24, 180, 33);
/* oklch */ color: oklch(67.0% 0.216 143.1);

Tailwind

colors: {
  custom: {
    50: '#77cc6a',
    500: '#18b421',
    950: '#000000',
  },
}

SCSS

$custom: #18b421;
$custom-light: #77cc6a;
$custom-dark: #000000;

JSON

{
  "hex": "#18b421",
  "rgb": {
    "r": 24,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 123.462,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.66991,
    "c": 0.21599,
    "h": 143.1
  },
  "luminance": 0.32947
}

Semantic roles & 50–950 ramp

primary

#18B421

secondary

#CD5BC7

accent

#35E8F3

background

#F8FCF6

surface

#EFF9EC

border

#CAD2C7

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #18B421

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

Preview Lab → · Contrast checker → · Palette generator →