#1B591B#1B591B

#1B591B is a dark, moderate green. Relative luminance 0.075; OKLCH L 41.0% C 0.113 H 143.2°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B591B
RGB	rgb(27, 89, 27)
HSL	hsl(120, 53%, 23%)
HSV	hsv(120, 70%, 35%)
CMYK	cmyk(69.7%, 0%, 69.7%, 65.1%)
CIE-LAB	lab(32.82, -33.37, 29.27)
CIE-LCH	lch(32.82, 44.39, 138.75°)
OKLab	oklab(40.98% -0.0906 0.0679)
OKLCH	oklch(40.98% 0.113 143.2)
XYZ	xyz(4.2220, 7.4565, 2.2534)
Luminance	0.0746 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B591B #591B59

analogous

#3A591B #1B591B #1B593A

triadic

#1B591B #1B1B59 #591B1B

tetradic

#1B591B #1B3A59 #591B59 #593A1B

square

#1B591B #1B3A59 #591B59 #593A1B

split-complementary

#1B591B #3A1B59 #591B3A

monochromatic

#071707 #0D2A0D #1B591B #298829 #37B737

Accessibility & contrast

On white

8.43

#1B591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B591B

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B591B	#FFFFFF	#000000	##FFFFFF
##1B591B	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5013

Deuteranopia (green-blind)

#534B20

Tritanopia (blue-blind)

#0D564C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b591b;
/* rgb */ color: rgb(27, 89, 27);
/* oklch */ color: oklch(41.0% 0.113 143.2);

Tailwind

colors: {
  custom: {
    50: '#61895a',
    500: '#1b591b',
    950: '#000000',
  },
}

SCSS

$custom: #1b591b;
$custom-light: #61895a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b591b",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.40982,
    "c": 0.11324,
    "h": 143.2
  },
  "luminance": 0.07457
}

Semantic roles & 50–950 ramp

primary

#1B591B

secondary

#8F418F

accent

#4BDDDD

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#050B04

muted

#7A7C79

Preview Lab

Preview with #1B591B

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

Preview Lab → · Contrast checker → · Palette generator →