#1B3704#1B3704

#1B3704 is a dark, moderate yellow-green. Relative luminance 0.030; OKLCH L 30.3% C 0.083 H 134.5°. Best body text is #FFFFFF at 13.17:1 contrast (WCAG AA passes).

Color values

HEX	#1B3704
RGB	rgb(27, 55, 4)
HSL	hsl(93, 86%, 12%)
HSV	hsv(93, 93%, 22%)
CMYK	cmyk(50.9%, 0%, 92.7%, 78.4%)
CIE-LAB	lab(19.94, -20.65, 25.91)
CIE-LCH	lch(19.94, 33.14, 128.56°)
OKLab	oklab(30.3% -0.058 0.0589)
OKLCH	oklch(30.3% 0.083 134.5)
XYZ	xyz(1.8401, 2.9740, 0.5919)
Luminance	0.0297 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Dark Green

#033500

ΔE00 3.84

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 6.58

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3704 #200437

analogous

#353704 #1B3704 #043706

triadic

#1B3704 #041B37 #37041B

tetradic

#1B3704 #043537 #200437 #370604

square

#1B3704 #043537 #200437 #370604

split-complementary

#1B3704 #060437 #370435

monochromatic

#0E1D02 #0E1D02 #1B3704 #377008 #53A90C

Accessibility & contrast

On white

13.17

#1B3704 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1B3704 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3704

13.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3704	#FFFFFF	#000000	##FFFFFF
##1B3704	1.00	13.17	1.59	13.17
#FFFFFF	13.17	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3200

Deuteranopia (green-blind)

#362F09

Tritanopia (blue-blind)

#1A342E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b3704;
/* rgb */ color: rgb(27, 55, 4);
/* oklch */ color: oklch(30.3% 0.083 134.5);

Tailwind

colors: {
  custom: {
    50: '#5b6e49',
    500: '#1b3704',
    950: '#000000',
  },
}

SCSS

$custom: #1b3704;
$custom-light: #5b6e49;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3704",
  "rgb": {
    "r": 27,
    "g": 55,
    "b": 4
  },
  "hsl": {
    "h": 92.941,
    "s": 86.441,
    "l": 11.569
  },
  "oklch": {
    "l": 0.30295,
    "c": 0.08266,
    "h": 134.5
  },
  "luminance": 0.02974
}

Semantic roles & 50–950 ramp

primary

#1B3704

secondary

#501E79

accent

#2BFD9E

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040701

muted

#797A77

Preview Lab

Preview with #1B3704

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

Preview Lab → · Contrast checker → · Palette generator →