#1B581E#1B581E

#1B581E is a dark, moderate green. Relative luminance 0.073; OKLCH L 40.7% C 0.109 H 144.0°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#1B581E
RGB	rgb(27, 88, 30)
HSL	hsl(123, 53%, 23%)
HSV	hsv(123, 69%, 35%)
CMYK	cmyk(69.3%, 0%, 65.9%, 65.5%)
CIE-LAB	lab(32.49, -32.59, 27.39)
CIE-LCH	lch(32.49, 42.57, 139.96°)
OKLab	oklab(40.72% -0.0884 0.0642)
OKLCH	oklch(40.72% 0.109 144)
XYZ	xyz(4.1758, 7.3058, 2.4181)
Luminance	0.0731 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B581E #581B55

analogous

#36581B #1B581E #1B583D

triadic

#1B581E #1E1B58 #581E1B

tetradic

#1B581E #1B3658 #581B55 #583D1B

square

#1B581E #1B3658 #581B55 #583D1B

split-complementary

#1B581E #3D1B58 #581B36

monochromatic

#071708 #0D290E #1B581E #29872E #38B63E

Accessibility & contrast

On white

8.53

#1B581E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1B581E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B581E

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B581E	#FFFFFF	#000000	##FFFFFF
##1B581E	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5018

Deuteranopia (green-blind)

#524A23

Tritanopia (blue-blind)

#0D554C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b581e;
/* rgb */ color: rgb(27, 88, 30);
/* oklch */ color: oklch(40.7% 0.109 144.0);

Tailwind

colors: {
  custom: {
    50: '#60885c',
    500: '#1b581e',
    950: '#000000',
  },
}

SCSS

$custom: #1b581e;
$custom-light: #60885c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b581e",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 30
  },
  "hsl": {
    "h": 122.951,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.40719,
    "c": 0.10924,
    "h": 144
  },
  "luminance": 0.07306
}

Semantic roles & 50–950 ramp

primary

#1B581E

secondary

#8E418A

accent

#4BD5DC

background

#F5F8F5

surface

#EAF0E9

border

#C6CBC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #1B581E

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

Preview Lab → · Contrast checker → · Palette generator →