#1B3D05#1B3D05

#1B3D05 is a dark, moderate yellow-green. Relative luminance 0.036; OKLCH L 32.2% C 0.090 H 136.3°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#1B3D05
RGB	rgb(27, 61, 5)
HSL	hsl(96, 85%, 13%)
HSV	hsv(96, 92%, 24%)
CMYK	cmyk(55.7%, 0%, 91.8%, 76.1%)
CIE-LAB	lab(22.24, -23.45, 28.02)
CIE-LCH	lch(22.24, 36.53, 129.92°)
OKLab	oklab(32.18% -0.0654 0.0625)
OKLCH	oklch(32.18% 0.09 136.3)
XYZ	xyz(2.1481, 3.5813, 0.7216)
Luminance	0.0358 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forrest Green

#154406

ΔE00 2.81

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3D05 #27053D

analogous

#373D05 #1B3D05 #053D0B

triadic

#1B3D05 #051B3D #3D051B

tetradic

#1B3D05 #05373D #27053D #3D0B05

square

#1B3D05 #05373D #27053D #3D0B05

split-complementary

#1B3D05 #0B053D #3D0537

monochromatic

#0D1C02 #0D1C02 #1B3D05 #34760A #4DAE0E

Accessibility & contrast

On white

12.24

#1B3D05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B3D05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3D05

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3D05	#FFFFFF	#000000	##FFFFFF
##1B3D05	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F3700

Deuteranopia (green-blind)

#3B340B

Tritanopia (blue-blind)

#193A33

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b3d05;
/* rgb */ color: rgb(27, 61, 5);
/* oklch */ color: oklch(32.2% 0.090 136.3);

Tailwind

colors: {
  custom: {
    50: '#5c734a',
    500: '#1b3d05',
    950: '#000000',
  },
}

SCSS

$custom: #1b3d05;
$custom-light: #5c734a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3d05",
  "rgb": {
    "r": 27,
    "g": 61,
    "b": 5
  },
  "hsl": {
    "h": 96.429,
    "s": 84.848,
    "l": 12.941
  },
  "oklch": {
    "l": 0.32184,
    "c": 0.09042,
    "h": 136.3
  },
  "luminance": 0.03581
}

Semantic roles & 50–950 ramp

primary

#1B3D05

secondary

#59207E

accent

#2DFBAA

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040801

muted

#797B77

Preview Lab

Preview with #1B3D05

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

Preview Lab → · Contrast checker → · Palette generator →