#18B31F#18B31F

#18B31F is a light, highly saturated green. Relative luminance 0.325; OKLCH L 66.7% C 0.216 H 143.0°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#18B31F
RGB	rgb(24, 179, 31)
HSL	hsl(123, 76%, 40%)
HSV	hsv(123, 87%, 70%)
CMYK	cmyk(86.6%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(63.78, -63.59, 58.62)
CIE-LCH	lch(63.78, 86.49, 137.33°)
OKLab	oklab(66.71% -0.1723 0.1299)
OKLCH	oklch(66.71% 0.216 143)
XYZ	xyz(16.7430, 32.5312, 6.6928)
Luminance	0.3253 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18B31F #B318AC

analogous

#5EB318 #18B31F #18B36D

triadic

#18B31F #1F18B3 #B31F18

tetradic

#18B31F #185EB3 #B318AC #B36D18

square

#18B31F #185EB3 #B318AC #B36D18

split-complementary

#18B31F #6D18B3 #B3185E

monochromatic

#0A470C #117D16 #18B31F #26E22F #5CE963

Accessibility & contrast

On white

2.80

#18B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#18B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #18B31F

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18B31F	#FFFFFF	#000000	##000000
##18B31F	1.00	2.80	7.51	7.51
#FFFFFF	2.80	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)

#B7A100

Deuteranopia (green-blind)

#A79633

Tritanopia (blue-blind)

#00AE98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #18b31f;
/* rgb */ color: rgb(24, 179, 31);
/* oklch */ color: oklch(66.7% 0.216 143.0);

Tailwind

colors: {
  custom: {
    50: '#77cb69',
    500: '#18b31f',
    950: '#000000',
  },
}

SCSS

$custom: #18b31f;
$custom-light: #77cb69;
$custom-dark: #000000;

JSON

{
  "hex": "#18b31f",
  "rgb": {
    "r": 24,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 122.71,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.66707,
    "c": 0.21579,
    "h": 143
  },
  "luminance": 0.32533
}

Semantic roles & 50–950 ramp

primary

#18B31F

secondary

#CD5AC8

accent

#35EAF3

background

#F8FCF6

surface

#EFF9EB

border

#CAD2C6

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #18B31F

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

Preview Lab → · Contrast checker → · Palette generator →