#1B5B11#1B5B11

#1B5B11 is a dark, vivid green. Relative luminance 0.078; OKLCH L 41.5% C 0.123 H 141.2°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B11
RGB	rgb(27, 91, 17)
HSL	hsl(112, 69%, 21%)
HSV	hsv(112, 81%, 36%)
CMYK	cmyk(70.3%, 0%, 81.3%, 64.3%)
CIE-LAB	lab(33.47, -35.14, 34.33)
CIE-LCH	lch(33.47, 49.13, 135.67°)
OKLab	oklab(41.49% -0.096 0.0771)
OKLCH	oklch(41.49% 0.123 141.2)
XYZ	xyz(4.2940, 7.7552, 1.8008)
Luminance	0.0776 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B11 #51115B

analogous

#405B11 #1B5B11 #115B2C

triadic

#1B5B11 #111B5B #5B111B

tetradic

#1B5B11 #11405B #51115B #5B2C11

square

#1B5B11 #11405B #51115B #5B2C11

split-complementary

#1B5B11 #2C115B #5B1140

monochromatic

#081A05 #0C2707 #1B5B11 #2A8F1B #3AC224

Accessibility & contrast

On white

8.23

#1B5B11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1B5B11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B11

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B11	#FFFFFF	#000000	##FFFFFF
##1B5B11	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5203

Deuteranopia (green-blind)

#564D19

Tritanopia (blue-blind)

#0F584D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5b11;
/* rgb */ color: rgb(27, 91, 17);
/* oklch */ color: oklch(41.5% 0.123 141.2);

Tailwind

colors: {
  custom: {
    50: '#628a55',
    500: '#1b5b11',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b11;
$custom-light: #628a55;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b11",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 17
  },
  "hsl": {
    "h": 111.892,
    "s": 68.519,
    "l": 21.176
  },
  "oklch": {
    "l": 0.41488,
    "c": 0.12316,
    "h": 141.2
  },
  "luminance": 0.07756
}

Semantic roles & 50–950 ramp

primary

#1B5B11

secondary

#873494

accent

#3CEBD4

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#060C03

muted

#7A7D78

Preview Lab

Preview with #1B5B11

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

Preview Lab → · Contrast checker → · Palette generator →