#1B580F#1B580F

#1B580F is a dark, vivid green. Relative luminance 0.072; OKLCH L 40.6% C 0.121 H 140.8°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#1B580F
RGB	rgb(27, 88, 15)
HSL	hsl(110, 71%, 20%)
HSV	hsv(110, 83%, 35%)
CMYK	cmyk(69.3%, 0%, 83%, 65.5%)
CIE-LAB	lab(32.36, -34.14, 34.01)
CIE-LCH	lch(32.36, 48.19, 135.11°)
OKLab	oklab(40.57% -0.0934 0.0761)
OKLCH	oklch(40.57% 0.121 140.8)
XYZ	xyz(4.0277, 7.2465, 1.6383)
Luminance	0.0725 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B580F #4C0F58

analogous

#3F580F #1B580F #0F5827

triadic

#1B580F #0F1B58 #580F1B

tetradic

#1B580F #0F3F58 #4C0F58 #58270F

square

#1B580F #0F3F58 #4C0F58 #58270F

split-complementary

#1B580F #270F58 #580F3F

monochromatic

#081A04 #0B2406 #1B580F #2B8C18 #3BC121

Accessibility & contrast

On white

8.57

#1B580F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#1B580F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B580F

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B580F	#FFFFFF	#000000	##FFFFFF
##1B580F	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F01

Deuteranopia (green-blind)

#534A17

Tritanopia (blue-blind)

#11554A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b580f;
/* rgb */ color: rgb(27, 88, 15);
/* oklch */ color: oklch(40.6% 0.121 140.8);

Tailwind

colors: {
  custom: {
    50: '#618854',
    500: '#1b580f',
    950: '#000000',
  },
}

SCSS

$custom: #1b580f;
$custom-light: #618854;
$custom-dark: #000000;

JSON

{
  "hex": "#1b580f",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 15
  },
  "hsl": {
    "h": 110.137,
    "s": 70.874,
    "l": 20.196
  },
  "oklch": {
    "l": 0.40568,
    "c": 0.12051,
    "h": 140.8
  },
  "luminance": 0.07247
}

Semantic roles & 50–950 ramp

primary

#1B580F

secondary

#823192

accent

#3AEED0

background

#F6F8F5

surface

#EBF0E8

border

#C6CBC4

text

#050B03

muted

#7A7C78

Preview Lab

Preview with #1B580F

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

Preview Lab → · Contrast checker → · Palette generator →