#1B3C04#1B3C04

#1B3C04 is a dark, moderate yellow-green. Relative luminance 0.035; OKLCH L 31.9% C 0.090 H 135.9°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#1B3C04
RGB	rgb(27, 60, 4)
HSL	hsl(95, 88%, 13%)
HSV	hsv(95, 93%, 24%)
CMYK	cmyk(55%, 0%, 93.3%, 76.5%)
CIE-LAB	lab(21.85, -23.07, 28.01)
CIE-LCH	lch(21.85, 36.29, 129.47°)
OKLab	oklab(31.86% -0.0644 0.0625)
OKLCH	oklch(31.86% 0.09 135.9)
XYZ	xyz(2.0897, 3.4734, 0.6752)
Luminance	0.0347 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 3.13

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3C04 #25043C

analogous

#373C04 #1B3C04 #043C09

triadic

#1B3C04 #041B3C #3C041B

tetradic

#1B3C04 #04373C #25043C #3C0904

square

#1B3C04 #04373C #25043C #3C0904

split-complementary

#1B3C04 #09043C #3C0437

monochromatic

#0D1D02 #0D1D02 #1B3C04 #357508 #4FAF0C

Accessibility & contrast

On white

12.39

#1B3C04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B3C04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3C04

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3C04	#FFFFFF	#000000	##FFFFFF
##1B3C04	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3600

Deuteranopia (green-blind)

#3A330A

Tritanopia (blue-blind)

#1A3932

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b3c04;
/* rgb */ color: rgb(27, 60, 4);
/* oklch */ color: oklch(31.9% 0.090 135.9);

Tailwind

colors: {
  custom: {
    50: '#5c724a',
    500: '#1b3c04',
    950: '#000000',
  },
}

SCSS

$custom: #1b3c04;
$custom-light: #5c724a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3c04",
  "rgb": {
    "r": 27,
    "g": 60,
    "b": 4
  },
  "hsl": {
    "h": 95.357,
    "s": 87.5,
    "l": 12.549
  },
  "oklch": {
    "l": 0.31863,
    "c": 0.08979,
    "h": 135.9
  },
  "luminance": 0.03473
}

Semantic roles & 50–950 ramp

primary

#1B3C04

secondary

#561E7E

accent

#2AFEA7

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040801

muted

#797B77

Preview Lab

Preview with #1B3C04

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

Preview Lab → · Contrast checker → · Palette generator →