#1B3A04#1B3A04

#1B3A04 is a dark, moderate yellow-green. Relative luminance 0.033; OKLCH L 31.2% C 0.087 H 135.4°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B3A04
RGB	rgb(27, 58, 4)
HSL	hsl(94, 87%, 12%)
HSV	hsv(94, 93%, 23%)
CMYK	cmyk(53.4%, 0%, 93.1%, 77.3%)
CIE-LAB	lab(21.09, -22.12, 27.19)
CIE-LCH	lch(21.09, 35.05, 129.13°)
OKLab	oklab(31.24% -0.0619 0.0611)
OKLCH	oklch(31.24% 0.087 135.4)
XYZ	xyz(1.9869, 3.2678, 0.6409)
Luminance	0.0327 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3A04 #23043A

analogous

#363A04 #1B3A04 #043A08

triadic

#1B3A04 #041B3A #3A041B

tetradic

#1B3A04 #04363A #23043A #3A0804

square

#1B3A04 #04363A #23043A #3A0804

split-complementary

#1B3A04 #08043A #3A0436

monochromatic

#0D1D02 #0D1D02 #1B3A04 #367308 #50AD0C

Accessibility & contrast

On white

12.70

#1B3A04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1B3A04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3A04

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3A04	#FFFFFF	#000000	##FFFFFF
##1B3A04	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3400

Deuteranopia (green-blind)

#383209

Tritanopia (blue-blind)

#1A3730

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1b3a04;
/* rgb */ color: rgb(27, 58, 4);
/* oklch */ color: oklch(31.2% 0.087 135.4);

Tailwind

colors: {
  custom: {
    50: '#5b704a',
    500: '#1b3a04',
    950: '#000000',
  },
}

SCSS

$custom: #1b3a04;
$custom-light: #5b704a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3a04",
  "rgb": {
    "r": 27,
    "g": 58,
    "b": 4
  },
  "hsl": {
    "h": 94.444,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.31236,
    "c": 0.08697,
    "h": 135.4
  },
  "luminance": 0.03268
}

Semantic roles & 50–950 ramp

primary

#1B3A04

secondary

#541E7C

accent

#2BFDA4

background

#F5F6F4

surface

#E9ECE7

border

#C5C7C3

text

#040701

muted

#797A77

Preview Lab

Preview with #1B3A04

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

Preview Lab → · Contrast checker → · Palette generator →