#1B5B10#1B5B10

#1B5B10 is a dark, vivid green. Relative luminance 0.078; OKLCH L 41.5% C 0.124 H 141.1°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B5B10
RGB	rgb(27, 91, 16)
HSL	hsl(111, 70%, 21%)
HSV	hsv(111, 82%, 36%)
CMYK	cmyk(70.3%, 0%, 82.4%, 64.3%)
CIE-LAB	lab(33.46, -35.22, 34.70)
CIE-LCH	lch(33.46, 49.45, 135.42°)
OKLab	oklab(41.48% -0.0963 0.0777)
OKLCH	oklch(41.48% 0.124 141.1)
XYZ	xyz(4.2864, 7.7522, 1.7605)
Luminance	0.0775 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5B10 #50105B

analogous

#405B10 #1B5B10 #105B2A

triadic

#1B5B10 #101B5B #5B101B

tetradic

#1B5B10 #10405B #50105B #5B2A10

square

#1B5B10 #10405B #50105B #5B2A10

split-complementary

#1B5B10 #2A105B #5B1040

monochromatic

#081A05 #0C2707 #1B5B10 #2A8F19 #3AC322

Accessibility & contrast

On white

8.23

#1B5B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#1B5B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5B10

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5B10	#FFFFFF	#000000	##FFFFFF
##1B5B10	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)

#5E5201

Deuteranopia (green-blind)

#564D18

Tritanopia (blue-blind)

#0F584D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1b5b10;
/* rgb */ color: rgb(27, 91, 16);
/* oklch */ color: oklch(41.5% 0.124 141.1);

Tailwind

colors: {
  custom: {
    50: '#628a55',
    500: '#1b5b10',
    950: '#000000',
  },
}

SCSS

$custom: #1b5b10;
$custom-light: #628a55;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5b10",
  "rgb": {
    "r": 27,
    "g": 91,
    "b": 16
  },
  "hsl": {
    "h": 111.2,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.41481,
    "c": 0.12375,
    "h": 141.1
  },
  "luminance": 0.07753
}

Semantic roles & 50–950 ramp

primary

#1B5B10

secondary

#863394

accent

#3BEDD3

background

#F6F8F5

surface

#EBF0E9

border

#C6CBC5

text

#060C03

muted

#7A7D78

Preview Lab

Preview with #1B5B10

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

Preview Lab → · Contrast checker → · Palette generator →