#3F520F#3F520F

#3F520F is a dark, moderate yellow-green. Relative luminance 0.071; OKLCH L 40.8% C 0.093 H 124.5°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F520F
RGB	rgb(63, 82, 15)
HSL	hsl(77, 69%, 19%)
HSV	hsv(77, 82%, 32%)
CMYK	cmyk(23.2%, 0%, 81.7%, 67.8%)
CIE-LAB	lab(32.09, -18.05, 34.38)
CIE-LCH	lch(32.09, 38.83, 117.69°)
OKLab	oklab(40.85% -0.0525 0.0762)
OKLCH	oklch(40.85% 0.093 124.5)
XYZ	xyz(5.1535, 7.1258, 1.5558)
Luminance	0.0713 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F520F #220F52

analogous

#52440F #3F520F #1E520F

triadic

#3F520F #0F3F52 #520F3F

tetradic

#3F520F #0F5244 #220F52 #520F1E

square

#3F520F #0F5244 #220F52 #520F1E

split-complementary

#3F520F #0F1E52 #440F52

monochromatic

#141A05 #171E06 #3F520F #678618 #8EB922

Accessibility & contrast

On white

8.66

#3F520F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3F520F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F520F

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F520F	#FFFFFF	#000000	##FFFFFF
##3F520F	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574C03

Deuteranopia (green-blind)

#554B15

Tritanopia (blue-blind)

#424E45

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f520f;
/* rgb */ color: rgb(63, 82, 15);
/* oklch */ color: oklch(40.8% 0.093 124.5);

Tailwind

colors: {
  custom: {
    50: '#778253',
    500: '#3f520f',
    950: '#000000',
  },
}

SCSS

$custom: #3f520f;
$custom-light: #778253;
$custom-dark: #000000;

JSON

{
  "hex": "#3f520f",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 15
  },
  "hsl": {
    "h": 77.015,
    "s": 69.072,
    "l": 19.02
  },
  "oklch": {
    "l": 0.40845,
    "c": 0.09254,
    "h": 124.5
  },
  "luminance": 0.07126
}

Semantic roles & 50–950 ramp

primary

#3F520F

secondary

#4B318C

accent

#3CEC6E

background

#F7F7F4

surface

#EDEEE8

border

#C8C9C4

text

#090A03

muted

#7B7C78

Preview Lab

Preview with #3F520F

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

Preview Lab → · Contrast checker → · Palette generator →