#1B581A#1B581A

#1B581A is a dark, moderate green. Relative luminance 0.073; OKLCH L 40.7% C 0.113 H 142.9°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B581A
RGB	rgb(27, 88, 26)
HSL	hsl(119, 54%, 22%)
HSV	hsv(119, 70%, 35%)
CMYK	cmyk(69.3%, 0%, 70.5%, 65.5%)
CIE-LAB	lab(32.45, -33.09, 29.34)
CIE-LCH	lch(32.45, 44.22, 138.43°)
OKLab	oklab(40.67% -0.0899 0.0679)
OKLCH	oklch(40.67% 0.113 142.9)
XYZ	xyz(4.1279, 7.2866, 2.1660)
Luminance	0.0729 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B581A #571A58

analogous

#3A581A #1B581A #1A5838

triadic

#1B581A #1A1B58 #581A1B

tetradic

#1B581A #1A3A58 #571A58 #58381A

square

#1B581A #1A3A58 #571A58 #58381A

split-complementary

#1B581A #381A58 #581A3A

monochromatic

#071807 #0D290C #1B581A #298728 #38B636

Accessibility & contrast

On white

8.55

#1B581A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#1B581A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B581A

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B581A	#FFFFFF	#000000	##FFFFFF
##1B581A	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F12

Deuteranopia (green-blind)

#534A1F

Tritanopia (blue-blind)

#0E554B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b581a;
/* rgb */ color: rgb(27, 88, 26);
/* oklch */ color: oklch(40.7% 0.113 142.9);

Tailwind

colors: {
  custom: {
    50: '#60885a',
    500: '#1b581a',
    950: '#000000',
  },
}

SCSS

$custom: #1b581a;
$custom-light: #60885a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b581a",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 26
  },
  "hsl": {
    "h": 119.032,
    "s": 54.386,
    "l": 22.353
  },
  "oklch": {
    "l": 0.4067,
    "c": 0.1127,
    "h": 142.9
  },
  "luminance": 0.07287
}

Semantic roles & 50–950 ramp

primary

#1B581A

secondary

#8D408E

accent

#4ADEDB

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#050B04

muted

#7A7C79

Preview Lab

Preview with #1B581A

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

Preview Lab → · Contrast checker → · Palette generator →