#1B591F#1B591F

#1B591F is a dark, moderate green. Relative luminance 0.075; OKLCH L 41.0% C 0.110 H 144.2°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B591F
RGB	rgb(27, 89, 31)
HSL	hsl(124, 53%, 23%)
HSV	hsv(124, 70%, 35%)
CMYK	cmyk(69.7%, 0%, 65.2%, 65.1%)
CIE-LAB	lab(32.87, -32.87, 27.30)
CIE-LCH	lch(32.87, 42.73, 140.29°)
OKLab	oklab(41.03% -0.0891 0.0642)
OKLCH	oklch(41.03% 0.11 144.2)
XYZ	xyz(4.2714, 7.4763, 2.5140)
Luminance	0.0748 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B591F #591B55

analogous

#36591B #1B591F #1B593E

triadic

#1B591F #1F1B59 #591F1B

tetradic

#1B591F #1B3659 #591B55 #593E1B

square

#1B591F #1B3659 #591B55 #593E1B

split-complementary

#1B591F #3E1B59 #591B36

monochromatic

#071708 #0D2A0F #1B591F #29882F #37B740

Accessibility & contrast

On white

8.42

#1B591F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1B591F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B591F

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B591F	#FFFFFF	#000000	##FFFFFF
##1B591F	1.00	8.42	2.50	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5019

Deuteranopia (green-blind)

#534B24

Tritanopia (blue-blind)

#0C564D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b591f;
/* rgb */ color: rgb(27, 89, 31);
/* oklch */ color: oklch(41.0% 0.110 144.2);

Tailwind

colors: {
  custom: {
    50: '#60895d',
    500: '#1b591f',
    950: '#000000',
  },
}

SCSS

$custom: #1b591f;
$custom-light: #60895d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b591f",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 31
  },
  "hsl": {
    "h": 123.871,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.41032,
    "c": 0.10976,
    "h": 144.2
  },
  "luminance": 0.07477
}

Semantic roles & 50–950 ramp

primary

#1B591F

secondary

#8F418A

accent

#4BD3DD

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#050B04

muted

#7A7C79

Preview Lab

Preview with #1B591F

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

Preview Lab → · Contrast checker → · Palette generator →