#1B571B#1B571B

#1B571B is a dark, moderate green. Relative luminance 0.071; OKLCH L 40.4% C 0.110 H 143.2°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B571B
RGB	rgb(27, 87, 27)
HSL	hsl(120, 53%, 22%)
HSV	hsv(120, 69%, 34%)
CMYK	cmyk(69%, 0%, 69%, 65.9%)
CIE-LAB	lab(32.10, -32.56, 28.46)
CIE-LCH	lch(32.10, 43.25, 138.84°)
OKLab	oklab(40.38% -0.0884 0.0662)
OKLCH	oklch(40.38% 0.11 143.2)
XYZ	xyz(4.0578, 7.1281, 2.1987)
Luminance	0.0713 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B571B #571B57

analogous

#39571B #1B571B #1B5739

triadic

#1B571B #1B1B57 #571B1B

tetradic

#1B571B #1B3957 #571B57 #57391B

square

#1B571B #1B3957 #571B57 #57391B

split-complementary

#1B571B #391B57 #571B39

monochromatic

#071707 #0D280D #1B571B #298629 #38B438

Accessibility & contrast

On white

8.66

#1B571B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B571B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B571B

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B571B	#FFFFFF	#000000	##FFFFFF
##1B571B	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F14

Deuteranopia (green-blind)

#524A20

Tritanopia (blue-blind)

#0E544A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b571b;
/* rgb */ color: rgb(27, 87, 27);
/* oklch */ color: oklch(40.4% 0.110 143.2);

Tailwind

colors: {
  custom: {
    50: '#60875a',
    500: '#1b571b',
    950: '#000000',
  },
}

SCSS

$custom: #1b571b;
$custom-light: #60875a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b571b",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.40381,
    "c": 0.11047,
    "h": 143.2
  },
  "luminance": 0.07129
}

Semantic roles & 50–950 ramp

primary

#1B571B

secondary

#8D418D

accent

#4CDCDC

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #1B571B

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

Preview Lab → · Contrast checker → · Palette generator →