#1B571F#1B571F

#1B571F is a dark, moderate green. Relative luminance 0.071; OKLCH L 40.4% C 0.107 H 144.3°. Best body text is #FFFFFF at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B571F
RGB	rgb(27, 87, 31)
HSL	hsl(124, 53%, 22%)
HSV	hsv(124, 69%, 34%)
CMYK	cmyk(69%, 0%, 64.4%, 65.9%)
CIE-LAB	lab(32.14, -32.05, 26.47)
CIE-LCH	lch(32.14, 41.56, 140.45°)
OKLab	oklab(40.43% -0.0868 0.0624)
OKLCH	oklch(40.43% 0.107 144.3)
XYZ	xyz(4.1073, 7.1479, 2.4593)
Luminance	0.0715 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B571F #571B53

analogous

#35571B #1B571F #1B573D

triadic

#1B571F #1F1B57 #571F1B

tetradic

#1B571F #1B3557 #571B53 #573D1B

square

#1B571F #1B3557 #571B53 #573D1B

split-complementary

#1B571F #3D1B57 #571B35

monochromatic

#071708 #0D280E #1B571F #298630 #38B440

Accessibility & contrast

On white

8.64

#1B571F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1B571F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B571F

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B571F	#FFFFFF	#000000	##FFFFFF
##1B571F	1.00	8.64	2.43	8.64
#FFFFFF	8.64	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F19

Deuteranopia (green-blind)

#514A24

Tritanopia (blue-blind)

#0D554B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b571f;
/* rgb */ color: rgb(27, 87, 31);
/* oklch */ color: oklch(40.4% 0.107 144.3);

Tailwind

colors: {
  custom: {
    50: '#60875d',
    500: '#1b571f',
    950: '#000000',
  },
}

SCSS

$custom: #1b571f;
$custom-light: #60875d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b571f",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 31
  },
  "hsl": {
    "h": 124,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.40432,
    "c": 0.1069,
    "h": 144.3
  },
  "luminance": 0.07148
}

Semantic roles & 50–950 ramp

primary

#1B571F

secondary

#8D4188

accent

#4CD2DC

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #1B571F

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

Preview Lab → · Contrast checker → · Palette generator →