#1B511D#1B511D

#1B511D is a dark, moderate green. Relative luminance 0.062; OKLCH L 38.6% C 0.100 H 143.9°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B511D
RGB	rgb(27, 81, 29)
HSL	hsl(122, 50%, 21%)
HSV	hsv(122, 67%, 32%)
CMYK	cmyk(66.7%, 0%, 64.2%, 68.2%)
CIE-LAB	lab(29.93, -29.80, 24.96)
CIE-LCH	lch(29.93, 38.87, 140.04°)
OKLab	oklab(38.6% -0.0808 0.0589)
OKLCH	oklch(38.6% 0.1 143.9)
XYZ	xyz(3.6160, 6.2062, 2.1695)
Luminance	0.0621 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B511D #511B4F

analogous

#34511B #1B511D #1B5138

triadic

#1B511D #1D1B51 #511D1B

tetradic

#1B511D #1B3451 #511B4F #51381B

square

#1B511D #1B3451 #511B4F #51381B

split-complementary

#1B511D #381B51 #511B34

monochromatic

#081708 #0C230D #1B511D #2A7F2D #3AAD3E

Accessibility & contrast

On white

9.37

#1B511D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1B511D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B511D

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B511D	#FFFFFF	#000000	##FFFFFF
##1B511D	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534918

Deuteranopia (green-blind)

#4C4521

Tritanopia (blue-blind)

#104F46

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1b511d;
/* rgb */ color: rgb(27, 81, 29);
/* oklch */ color: oklch(38.6% 0.100 143.9);

Tailwind

colors: {
  custom: {
    50: '#5f825b',
    500: '#1b511d',
    950: '#000000',
  },
}

SCSS

$custom: #1b511d;
$custom-light: #5f825b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b511d",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 29
  },
  "hsl": {
    "h": 122.222,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.38596,
    "c": 0.10003,
    "h": 143.9
  },
  "luminance": 0.06207
}

Semantic roles & 50–950 ramp

primary

#1B511D

secondary

#874184

accent

#4ED4DA

background

#F5F8F5

surface

#EAEFE9

border

#C6CAC5

text

#050A04

muted

#797C79

Preview Lab

Preview with #1B511D

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

Preview Lab → · Contrast checker → · Palette generator →