#1B641F#1B641F

#1B641F is a dark, vivid green. Relative luminance 0.094; OKLCH L 44.3% C 0.125 H 143.9°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B641F
RGB	rgb(27, 100, 31)
HSL	hsl(123, 57%, 25%)
HSV	hsv(123, 73%, 39%)
CMYK	cmyk(73%, 0%, 69%, 60.8%)
CIE-LAB	lab(36.83, -37.22, 31.75)
CIE-LCH	lch(36.83, 48.92, 139.53°)
OKLab	oklab(44.31% -0.1008 0.0736)
OKLCH	oklch(44.31% 0.125 143.9)
XYZ	xyz(5.2562, 9.4457, 2.8423)
Luminance	0.0945 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B641F #641B60

analogous

#3B641B #1B641F #1B6444

triadic

#1B641F #1F1B64 #641F1B

tetradic

#1B641F #1B3B64 #641B60 #64441B

square

#1B641F #1B3B64 #641B60 #64441B

split-complementary

#1B641F #441B64 #641B3B

monochromatic

#071807 #0E3410 #1B641F #28942E #35C43D

Accessibility & contrast

On white

7.27

#1B641F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1B641F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B641F

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B641F	#FFFFFF	#000000	##FFFFFF
##1B641F	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665A16

Deuteranopia (green-blind)

#5D5425

Tritanopia (blue-blind)

#056156

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b641f;
/* rgb */ color: rgb(27, 100, 31);
/* oklch */ color: oklch(44.3% 0.125 143.9);

Tailwind

colors: {
  custom: {
    50: '#63915e',
    500: '#1b641f',
    950: '#000000',
  },
}

SCSS

$custom: #1b641f;
$custom-light: #63915e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b641f",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 31
  },
  "hsl": {
    "h": 123.288,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44309,
    "c": 0.12487,
    "h": 143.9
  },
  "luminance": 0.09446
}

Semantic roles & 50–950 ramp

primary

#1B641F

secondary

#994195

accent

#47D8E1

background

#F6F9F5

surface

#EBF1E9

border

#C6CBC5

text

#060D04

muted

#7A7E79

Preview Lab

Preview with #1B641F

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

Preview Lab → · Contrast checker → · Palette generator →