#1B3D09#1B3D09

#1B3D09 is a dark, moderate yellow-green. Relative luminance 0.036; OKLCH L 32.2% C 0.087 H 137.1°. Best body text is #FFFFFF at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B3D09
RGB	rgb(27, 61, 9)
HSL	hsl(99, 74%, 14%)
HSV	hsv(99, 85%, 24%)
CMYK	cmyk(55.7%, 0%, 85.2%, 76.1%)
CIE-LAB	lab(22.27, -23.10, 26.42)
CIE-LCH	lch(22.27, 35.10, 131.17°)
OKLab	oklab(32.22% -0.0641 0.0595)
OKLCH	oklch(32.22% 0.087 137.1)
XYZ	xyz(2.1700, 3.5901, 0.8370)
Luminance	0.0359 (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

#1B3D09 #2B093D

analogous

#353D09 #1B3D09 #093D11

triadic

#1B3D09 #091B3D #3D091B

tetradic

#1B3D09 #09353D #2B093D #3D1109

square

#1B3D09 #09353D #2B093D #3D1109

split-complementary

#1B3D09 #11093D #3D0935

monochromatic

#0C1B04 #0C1B04 #1B3D09 #337211 #4AA819

Accessibility & contrast

On white

12.22

#1B3D09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B3D09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3D09

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3D09	#FFFFFF	#000000	##FFFFFF
##1B3D09	1.00	12.22	1.72	12.22
#FFFFFF	12.22	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3702

Deuteranopia (green-blind)

#3B340E

Tritanopia (blue-blind)

#193A33

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b3d09;
/* rgb */ color: rgb(27, 61, 9);
/* oklch */ color: oklch(32.2% 0.087 137.1);

Tailwind

colors: {
  custom: {
    50: '#5c734c',
    500: '#1b3d09',
    950: '#000000',
  },
}

SCSS

$custom: #1b3d09;
$custom-light: #5c734c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3d09",
  "rgb": {
    "r": 27,
    "g": 61,
    "b": 9
  },
  "hsl": {
    "h": 99.231,
    "s": 74.286,
    "l": 13.725
  },
  "oklch": {
    "l": 0.3222,
    "c": 0.08743,
    "h": 137.1
  },
  "luminance": 0.0359
}

Semantic roles & 50–950 ramp

primary

#1B3D09

secondary

#5E277B

accent

#37F1B1

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040801

muted

#797B77

Preview Lab

Preview with #1B3D09

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

Preview Lab → · Contrast checker → · Palette generator →