#1B831B#1B831B

#1B831B is a mid, vivid green. Relative luminance 0.165; OKLCH L 53.3% C 0.166 H 142.8°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B831B
RGB	rgb(27, 131, 27)
HSL	hsl(120, 66%, 31%)
HSV	hsv(120, 79%, 51%)
CMYK	cmyk(79.4%, 0%, 79.4%, 48.6%)
CIE-LAB	lab(47.68, -48.58, 44.62)
CIE-LCH	lch(47.68, 65.96, 137.44°)
OKLab	oklab(53.31% -0.1319 0.1001)
OKLCH	oklch(53.31% 0.166 142.8)
XYZ	xyz(8.7656, 16.5437, 3.7680)
Luminance	0.1655 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B831B #831B83

analogous

#4F831B #1B831B #1B834F

triadic

#1B831B #1B1B83 #831B1B

tetradic

#1B831B #1B4F83 #831B83 #834F1B

square

#1B831B #1B4F83 #831B83 #834F1B

split-complementary

#1B831B #4F1B83 #831B4F

monochromatic

#061E06 #115011 #1B831B #25B625 #41D841

Accessibility & contrast

On white

4.87

#1B831B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#1B831B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B831B

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B831B	#FFFFFF	#000000	##FFFFFF
##1B831B	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)

#867602

Deuteranopia (green-blind)

#7B6E27

Tritanopia (blue-blind)

#007F6F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #1b831b;
/* rgb */ color: rgb(27, 131, 27);
/* oklch */ color: oklch(53.3% 0.166 142.8);

Tailwind

colors: {
  custom: {
    50: '#6ba860',
    500: '#1b831b',
    950: '#000000',
  },
}

SCSS

$custom: #1b831b;
$custom-light: #6ba860;
$custom-dark: #000000;

JSON

{
  "hex": "#1b831b",
  "rgb": {
    "r": 27,
    "g": 131,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 65.823,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53308,
    "c": 0.16553,
    "h": 142.8
  },
  "luminance": 0.16545
}

Semantic roles & 50–950 ramp

primary

#1B831B

secondary

#B643B6

accent

#3FE9E9

background

#F7FAF5

surface

#EDF4EA

border

#C8CEC6

text

#081005

muted

#7B7F79

Preview Lab

Preview with #1B831B

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

Preview Lab → · Contrast checker → · Palette generator →