#1F4A09#1F4A09

#1F4A09 is a dark, moderate yellow-green. Relative luminance 0.052; OKLCH L 36.4% C 0.104 H 137.7°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#1F4A09
RGB	rgb(31, 74, 9)
HSL	hsl(100, 78%, 16%)
HSV	hsv(100, 88%, 29%)
CMYK	cmyk(58.1%, 0%, 87.8%, 71%)
CIE-LAB	lab(27.32, -27.61, 31.42)
CIE-LCH	lch(27.32, 41.83, 131.30°)
OKLab	oklab(36.43% -0.0765 0.0697)
OKLCH	oklch(36.43% 0.104 137.7)
XYZ	xyz(3.0631, 5.2084, 1.1023)
Luminance	0.0521 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Forest Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F4A09 #34094A

analogous

#404A09 #1F4A09 #094A14

triadic

#1F4A09 #091F4A #4A091F

tetradic

#1F4A09 #09404A #34094A #4A1409

square

#1F4A09 #09404A #34094A #4A1409

split-complementary

#1F4A09 #14094A #4A0940

monochromatic

#0B1B03 #0B1B03 #1F4A09 #368110 #4DB716

Accessibility & contrast

On white

10.29

#1F4A09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1F4A09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F4A09

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F4A09	#FFFFFF	#000000	##FFFFFF
##1F4A09	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4300

Deuteranopia (green-blind)

#473F11

Tritanopia (blue-blind)

#1C473E

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1f4a09;
/* rgb */ color: rgb(31, 74, 9);
/* oklch */ color: oklch(36.4% 0.104 137.7);

Tailwind

colors: {
  custom: {
    50: '#607d4f',
    500: '#1f4a09',
    950: '#000000',
  },
}

SCSS

$custom: #1f4a09;
$custom-light: #607d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#1f4a09",
  "rgb": {
    "r": 31,
    "g": 74,
    "b": 9
  },
  "hsl": {
    "h": 99.692,
    "s": 78.313,
    "l": 16.275
  },
  "oklch": {
    "l": 0.36431,
    "c": 0.10351,
    "h": 137.7
  },
  "luminance": 0.05209
}

Semantic roles & 50–950 ramp

primary

#1F4A09

secondary

#672787

accent

#33F5B3

background

#F5F7F4

surface

#EAEEE7

border

#C6C9C3

text

#050902

muted

#797B78

Preview Lab

Preview with #1F4A09

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

Preview Lab → · Contrast checker → · Palette generator →