#1B641B#1B641B

#1B641B is a dark, vivid green. Relative luminance 0.094; OKLCH L 44.3% C 0.128 H 143.0°. Best body text is #FFFFFF at 7.28:1 contrast (WCAG AA passes).

Color values

HEX	#1B641B
RGB	rgb(27, 100, 27)
HSL	hsl(120, 57%, 25%)
HSV	hsv(120, 73%, 39%)
CMYK	cmyk(73%, 0%, 73%, 60.8%)
CIE-LAB	lab(36.79, -37.66, 33.56)
CIE-LCH	lch(36.79, 50.44, 138.29°)
OKLab	oklab(44.27% -0.1022 0.077)
OKLCH	oklch(44.27% 0.128 143)
XYZ	xyz(5.2067, 9.4259, 2.5817)
Luminance	0.0943 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B641B #641B64

analogous

#40641B #1B641B #1B6440

triadic

#1B641B #1B1B64 #641B1B

tetradic

#1B641B #1B4064 #641B64 #64401B

square

#1B641B #1B4064 #641B64 #64401B

split-complementary

#1B641B #401B64 #641B40

monochromatic

#071807 #0E340E #1B641B #289428 #35C435

Accessibility & contrast

On white

7.28

#1B641B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#1B641B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B641B

7.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B641B	#FFFFFF	#000000	##FFFFFF
##1B641B	1.00	7.28	2.89	7.28
#FFFFFF	7.28	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665A10

Deuteranopia (green-blind)

#5E5422

Tritanopia (blue-blind)

#076155

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b641b;
/* rgb */ color: rgb(27, 100, 27);
/* oklch */ color: oklch(44.3% 0.128 143.0);

Tailwind

colors: {
  custom: {
    50: '#63915c',
    500: '#1b641b',
    950: '#000000',
  },
}

SCSS

$custom: #1b641b;
$custom-light: #63915c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b641b",
  "rgb": {
    "r": 27,
    "g": 100,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44267,
    "c": 0.12797,
    "h": 143
  },
  "luminance": 0.09426
}

Semantic roles & 50–950 ramp

primary

#1B641B

secondary

#994199

accent

#47E1E1

background

#F6F9F5

surface

#EBF1E9

border

#C6CBC5

text

#060D04

muted

#7A7E79

Preview Lab

Preview with #1B641B

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

Preview Lab → · Contrast checker → · Palette generator →