#1B3F09#1B3F09

#1B3F09 is a dark, moderate green. Relative luminance 0.038; OKLCH L 32.8% C 0.090 H 137.5°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#1B3F09
RGB	rgb(27, 63, 9)
HSL	hsl(100, 75%, 14%)
HSV	hsv(100, 86%, 25%)
CMYK	cmyk(57.1%, 0%, 85.7%, 75.3%)
CIE-LAB	lab(23.02, -24.04, 27.21)
CIE-LCH	lch(23.02, 36.30, 131.46°)
OKLab	oklab(32.84% -0.0666 0.061)
OKLCH	oklch(32.84% 0.09 137.5)
XYZ	xyz(2.2787, 3.8076, 0.8733)
Luminance	0.0381 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Forrest Green

#154406

ΔE00 2.30

Hunter Green (survey)

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3F09 #2D093F

analogous

#363F09 #1B3F09 #093F12

triadic

#1B3F09 #091B3F #3F091B

tetradic

#1B3F09 #09363F #2D093F #3F1209

square

#1B3F09 #09363F #2D093F #3F1209

split-complementary

#1B3F09 #12093F #3F0936

monochromatic

#0B1B04 #0B1B04 #1B3F09 #327511 #49AA18

Accessibility & contrast

On white

11.92

#1B3F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1B3F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3F09

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3F09	#FFFFFF	#000000	##FFFFFF
##1B3F09	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413901

Deuteranopia (green-blind)

#3D360F

Tritanopia (blue-blind)

#193C35

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1b3f09;
/* rgb */ color: rgb(27, 63, 9);
/* oklch */ color: oklch(32.8% 0.090 137.5);

Tailwind

colors: {
  custom: {
    50: '#5c744d',
    500: '#1b3f09',
    950: '#000000',
  },
}

SCSS

$custom: #1b3f09;
$custom-light: #5c744d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3f09",
  "rgb": {
    "r": 27,
    "g": 63,
    "b": 9
  },
  "hsl": {
    "h": 100,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.32843,
    "c": 0.09034,
    "h": 137.5
  },
  "luminance": 0.03808
}

Semantic roles & 50–950 ramp

primary

#1B3F09

secondary

#60277D

accent

#36F2B3

background

#F5F7F4

surface

#E9EDE7

border

#C5C8C3

text

#040801

muted

#797B77

Preview Lab

Preview with #1B3F09

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

Preview Lab → · Contrast checker → · Palette generator →