#1B3603#1B3603

#1B3603 is a dark, moderate yellow-green. Relative luminance 0.029; OKLCH L 30.0% C 0.082 H 134.0°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B3603
RGB	rgb(27, 54, 3)
HSL	hsl(92, 89%, 11%)
HSV	hsv(92, 94%, 21%)
CMYK	cmyk(50%, 0%, 94.4%, 78.8%)
CIE-LAB	lab(19.55, -20.25, 25.87)
CIE-LCH	lch(19.55, 32.86, 128.06°)
OKLab	oklab(29.97% -0.057 0.0591)
OKLCH	oklch(29.97% 0.082 134)
XYZ	xyz(1.7876, 2.8778, 0.5474)
Luminance	0.0288 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Forest Green (survey)

#06470C

ΔE00 6.91

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3603 #1E0336

analogous

#343603 #1B3603 #033604

triadic

#1B3603 #031B36 #36031B

tetradic

#1B3603 #033436 #1E0336 #360403

square

#1B3603 #033436 #1E0336 #360403

split-complementary

#1B3603 #040336 #360334

monochromatic

#0E1D02 #0E1D02 #1B3603 #387006 #55AA09

Accessibility & contrast

On white

13.33

#1B3603 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B3603 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3603

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3603	#FFFFFF	#000000	##FFFFFF
##1B3603	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393100

Deuteranopia (green-blind)

#352F08

Tritanopia (blue-blind)

#1B332D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b3603;
/* rgb */ color: rgb(27, 54, 3);
/* oklch */ color: oklch(30.0% 0.082 134.0);

Tailwind

colors: {
  custom: {
    50: '#5a6d49',
    500: '#1b3603',
    950: '#000000',
  },
}

SCSS

$custom: #1b3603;
$custom-light: #5a6d49;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3603",
  "rgb": {
    "r": 27,
    "g": 54,
    "b": 3
  },
  "hsl": {
    "h": 91.765,
    "s": 89.474,
    "l": 11.176
  },
  "oklch": {
    "l": 0.2997,
    "c": 0.08211,
    "h": 134
  },
  "luminance": 0.02878
}

Semantic roles & 50–950 ramp

primary

#1B3603

secondary

#4D1C79

accent

#29FF9A

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040701

muted

#797A77

Preview Lab

Preview with #1B3603

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

Preview Lab → · Contrast checker → · Palette generator →