#1B831F#1B831F

#1B831F is a mid, vivid green. Relative luminance 0.166; OKLCH L 53.3% C 0.163 H 143.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B831F
RGB	rgb(27, 131, 31)
HSL	hsl(122, 66%, 31%)
HSV	hsv(122, 79%, 51%)
CMYK	cmyk(79.4%, 0%, 76.3%, 48.6%)
CIE-LAB	lab(47.71, -48.27, 43.19)
CIE-LCH	lch(47.71, 64.77, 138.18°)
OKLab	oklab(53.34% -0.1308 0.0977)
OKLCH	oklch(53.34% 0.163 143.3)
XYZ	xyz(8.8151, 16.5635, 4.0286)
Luminance	0.1656 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B831F #831B7F

analogous

#4B831B #1B831F #1B8353

triadic

#1B831F #1F1B83 #831F1B

tetradic

#1B831F #1B4B83 #831B7F #83531B

square

#1B831F #1B4B83 #831B7F #83531B

split-complementary

#1B831F #531B83 #831B4B

monochromatic

#061E07 #115013 #1B831F #25B62B #41D846

Accessibility & contrast

On white

4.87

#1B831F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#1B831F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B831F

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B831F	#FFFFFF	#000000	##FFFFFF
##1B831F	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#86760B

Deuteranopia (green-blind)

#7A6E2A

Tritanopia (blue-blind)

#007F70

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #1b831f;
/* rgb */ color: rgb(27, 131, 31);
/* oklch */ color: oklch(53.3% 0.163 143.3);

Tailwind

colors: {
  custom: {
    50: '#6ba862',
    500: '#1b831f',
    950: '#000000',
  },
}

SCSS

$custom: #1b831f;
$custom-light: #6ba862;
$custom-dark: #000000;

JSON

{
  "hex": "#1b831f",
  "rgb": {
    "r": 27,
    "g": 131,
    "b": 31
  },
  "hsl": {
    "h": 122.308,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53337,
    "c": 0.16325,
    "h": 143.3
  },
  "luminance": 0.16565
}

Semantic roles & 50–950 ramp

primary

#1B831F

secondary

#B643B2

accent

#3FE2E9

background

#F7FAF6

surface

#EDF4EB

border

#C8CEC6

text

#081005

muted

#7B7F7A

Preview Lab

Preview with #1B831F

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

Preview Lab → · Contrast checker → · Palette generator →