#1F591B#1F591B

#1F591B is a dark, moderate green. Relative luminance 0.075; OKLCH L 41.1% C 0.111 H 142.2°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#1F591B
RGB	rgb(31, 89, 27)
HSL	hsl(116, 53%, 23%)
HSV	hsv(116, 70%, 35%)
CMYK	cmyk(65.2%, 0%, 69.7%, 65.1%)
CIE-LAB	lab(32.95, -32.35, 29.45)
CIE-LCH	lch(32.95, 43.75, 137.69°)
OKLab	oklab(41.12% -0.0881 0.0682)
OKLCH	oklch(41.12% 0.111 142.2)
XYZ	xyz(4.3351, 7.5148, 2.2587)
Luminance	0.0751 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F591B #551B59

analogous

#3E591B #1F591B #1B5936

triadic

#1F591B #1B1F59 #591B1F

tetradic

#1F591B #1B3E59 #551B59 #59361B

square

#1F591B #1B3E59 #551B59 #59361B

split-complementary

#1F591B #361B59 #591B3E

monochromatic

#081707 #0F2A0D #1F591B #2F8829 #40B737

Accessibility & contrast

On white

8.39

#1F591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1F591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F591B

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F591B	#FFFFFF	#000000	##FFFFFF
##1F591B	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5013

Deuteranopia (green-blind)

#544C20

Tritanopia (blue-blind)

#15564C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1f591b;
/* rgb */ color: rgb(31, 89, 27);
/* oklch */ color: oklch(41.1% 0.111 142.2);

Tailwind

colors: {
  custom: {
    50: '#63885a',
    500: '#1f591b',
    950: '#000000',
  },
}

SCSS

$custom: #1f591b;
$custom-light: #63885a;
$custom-dark: #000000;

JSON

{
  "hex": "#1f591b",
  "rgb": {
    "r": 31,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 116.129,
    "s": 53.448,
    "l": 22.745
  },
  "oklch": {
    "l": 0.41123,
    "c": 0.11145,
    "h": 142.2
  },
  "luminance": 0.07515
}

Semantic roles & 50–950 ramp

primary

#1F591B

secondary

#8A418F

accent

#4BDDD3

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#060B04

muted

#7A7C79

Preview Lab

Preview with #1F591B

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

Preview Lab → · Contrast checker → · Palette generator →