#1B551B#1B551B

#1B551B is a dark, moderate green. Relative luminance 0.068; OKLCH L 39.8% C 0.108 H 143.2°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#1B551B
RGB	rgb(27, 85, 27)
HSL	hsl(120, 52%, 22%)
HSV	hsv(120, 68%, 33%)
CMYK	cmyk(68.2%, 0%, 68.2%, 66.7%)
CIE-LAB	lab(31.37, -31.74, 27.65)
CIE-LCH	lch(31.37, 42.10, 138.94°)
OKLab	oklab(39.78% -0.0862 0.0644)
OKLCH	oklch(39.78% 0.108 143.2)
XYZ	xyz(3.8981, 6.8088, 2.1455)
Luminance	0.0681 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B551B #551B55

analogous

#38551B #1B551B #1B5538

triadic

#1B551B #1B1B55 #551B1B

tetradic

#1B551B #1B3855 #551B55 #55381B

square

#1B551B #1B3855 #551B55 #55381B

split-complementary

#1B551B #381B55 #551B38

monochromatic

#071707 #0C270C #1B551B #2A832A #39B239

Accessibility & contrast

On white

8.89

#1B551B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#1B551B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B551B

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B551B	#FFFFFF	#000000	##FFFFFF
##1B551B	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574D14

Deuteranopia (green-blind)

#504820

Tritanopia (blue-blind)

#0F5249

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b551b;
/* rgb */ color: rgb(27, 85, 27);
/* oklch */ color: oklch(39.8% 0.108 143.2);

Tailwind

colors: {
  custom: {
    50: '#60855a',
    500: '#1b551b',
    950: '#000000',
  },
}

SCSS

$custom: #1b551b;
$custom-light: #60855a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b551b",
  "rgb": {
    "r": 27,
    "g": 85,
    "b": 27
  },
  "hsl": {
    "h": 120,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.39778,
    "c": 0.10765,
    "h": 143.2
  },
  "luminance": 0.06809
}

Semantic roles & 50–950 ramp

primary

#1B551B

secondary

#8B418B

accent

#4DDBDB

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050B04

muted

#797C79

Preview Lab

Preview with #1B551B

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

Preview Lab → · Contrast checker → · Palette generator →