#18B31B#18B31B

#18B31B is a light, highly saturated green. Relative luminance 0.325; OKLCH L 66.7% C 0.217 H 142.8°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#18B31B
RGB	rgb(24, 179, 27)
HSL	hsl(121, 76%, 40%)
HSV	hsv(121, 87%, 70%)
CMYK	cmyk(86.6%, 0%, 84.9%, 29.8%)
CIE-LAB	lab(63.76, -63.80, 59.63)
CIE-LCH	lch(63.76, 87.33, 136.93°)
OKLab	oklab(66.69% -0.173 0.1314)
OKLCH	oklch(66.69% 0.217 142.8)
XYZ	xyz(16.6935, 32.5114, 6.4322)
Luminance	0.3251 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18B31B #B318B0

analogous

#63B318 #18B31B #18B368

triadic

#18B31B #1B18B3 #B31B18

tetradic

#18B31B #1863B3 #B318B0 #B36818

square

#18B31B #1863B3 #B318B0 #B36818

split-complementary

#18B31B #6818B3 #B31863

monochromatic

#0A470B #117D13 #18B31B #26E22A #5CE95F

Accessibility & contrast

On white

2.80

#18B31B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#18B31B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #18B31B

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18B31B	#FFFFFF	#000000	##000000
##18B31B	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)

#B7A100

Deuteranopia (green-blind)

#A79630

Tritanopia (blue-blind)

#00AD98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #18b31b;
/* rgb */ color: rgb(24, 179, 27);
/* oklch */ color: oklch(66.7% 0.217 142.8);

Tailwind

colors: {
  custom: {
    50: '#77cb67',
    500: '#18b31b',
    950: '#000000',
  },
}

SCSS

$custom: #18b31b;
$custom-light: #77cb67;
$custom-dark: #000000;

JSON

{
  "hex": "#18b31b",
  "rgb": {
    "r": 24,
    "g": 179,
    "b": 27
  },
  "hsl": {
    "h": 121.161,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.66689,
    "c": 0.21731,
    "h": 142.8
  },
  "luminance": 0.32514
}

Semantic roles & 50–950 ramp

primary

#18B31B

secondary

#CD5ACB

accent

#35EFF3

background

#F8FCF6

surface

#EFF9EB

border

#CAD2C6

text

#0B1307

muted

#7C827A

Preview Lab

Preview with #18B31B

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

Preview Lab → · Contrast checker → · Palette generator →