#3F571F#3F571F

#3F571F is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.4% C 0.087 H 129.1°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F571F
RGB	rgb(63, 87, 31)
HSL	hsl(86, 47%, 23%)
HSV	hsv(86, 64%, 34%)
CMYK	cmyk(27.6%, 0%, 64.4%, 65.9%)
CIE-LAB	lab(33.92, -19.42, 28.97)
CIE-LCH	lch(33.92, 34.88, 123.83°)
OKLab	oklab(42.37% -0.0547 0.0674)
OKLCH	oklch(42.37% 0.087 129.1)
XYZ	xyz(5.7054, 7.9720, 2.5342)
Luminance	0.0797 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F571F #371F57

analogous

#57531F #3F571F #23571F

triadic

#3F571F #1F3F57 #571F3F

tetradic

#3F571F #1F5753 #371F57 #571F23

square

#3F571F #1F5753 #371F57 #571F23

split-complementary

#3F571F #1F2357 #531F57

monochromatic

#101708 #1E2A0F #3F571F #60842F #80B13F

Accessibility & contrast

On white

8.09

#3F571F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F571F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F571F

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F571F	#FFFFFF	#000000	##FFFFFF
##3F571F	1.00	8.09	2.59	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5119

Deuteranopia (green-blind)

#584F23

Tritanopia (blue-blind)

#41534B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f571f;
/* rgb */ color: rgb(63, 87, 31);
/* oklch */ color: oklch(42.4% 0.087 129.1);

Tailwind

colors: {
  custom: {
    50: '#76865d',
    500: '#3f571f',
    950: '#000000',
  },
}

SCSS

$custom: #3f571f;
$custom-light: #76865d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f571f",
  "rgb": {
    "r": 63,
    "g": 87,
    "b": 31
  },
  "hsl": {
    "h": 85.714,
    "s": 47.458,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42374,
    "c": 0.08676,
    "h": 129.1
  },
  "luminance": 0.07972
}

Semantic roles & 50–950 ramp

primary

#3F571F

secondary

#64468C

accent

#51D78A

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #3F571F

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

Preview Lab → · Contrast checker → · Palette generator →