#3F4F18#3F4F18

#3F4F18 is a dark, moderate yellow-green. Relative luminance 0.067; OKLCH L 40.1% C 0.081 H 123.9°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F4F18
RGB	rgb(63, 79, 24)
HSL	hsl(77, 53%, 20%)
HSV	hsv(77, 70%, 31%)
CMYK	cmyk(20.3%, 0%, 69.6%, 69%)
CIE-LAB	lab(31.15, -15.74, 29.45)
CIE-LCH	lch(31.15, 33.39, 118.13°)
OKLab	oklab(40.11% -0.0452 0.0674)
OKLCH	oklch(40.11% 0.081 123.9)
XYZ	xyz(5.0108, 6.7146, 1.8960)
Luminance	0.0672 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4F18 #28184F

analogous

#4F4418 #3F4F18 #234F18

triadic

#3F4F18 #183F4F #4F183F

tetradic

#3F4F18 #184F44 #28184F #4F1823

square

#3F4F18 #184F44 #28184F #4F1823

split-complementary

#3F4F18 #18234F #44184F

monochromatic

#131707 #1A200A #3F4F18 #647E26 #8AAD35

Accessibility & contrast

On white

8.96

#3F4F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3F4F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4F18

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4F18	#FFFFFF	#000000	##FFFFFF
##3F4F18	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544A11

Deuteranopia (green-blind)

#52491C

Tritanopia (blue-blind)

#424B44

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3f4f18;
/* rgb */ color: rgb(63, 79, 24);
/* oklch */ color: oklch(40.1% 0.081 123.9);

Tailwind

colors: {
  custom: {
    50: '#768058',
    500: '#3f4f18',
    950: '#000000',
  },
}

SCSS

$custom: #3f4f18;
$custom-light: #768058;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4f18",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 24
  },
  "hsl": {
    "h": 77.455,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.40106,
    "c": 0.08117,
    "h": 123.9
  },
  "luminance": 0.06715
}

Semantic roles & 50–950 ramp

primary

#3F4F18

secondary

#523D86

accent

#4BDD75

background

#F7F7F5

surface

#EDEEE9

border

#C8C9C5

text

#090A03

muted

#7B7C78

Preview Lab

Preview with #3F4F18

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

Preview Lab → · Contrast checker → · Palette generator →