#3F581A#3F581A

#3F581A is a dark, moderate yellow-green. Relative luminance 0.081; OKLCH L 42.6% C 0.093 H 128.6°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3F581A
RGB	rgb(63, 88, 26)
HSL	hsl(84, 54%, 22%)
HSV	hsv(84, 70%, 35%)
CMYK	cmyk(28.4%, 0%, 70.5%, 65.5%)
CIE-LAB	lab(34.21, -20.42, 31.76)
CIE-LCH	lch(34.21, 37.76, 122.74°)
OKLab	oklab(42.59% -0.0579 0.0726)
OKLCH	oklch(42.59% 0.093 128.6)
XYZ	xyz(5.7261, 8.1107, 2.2409)
Luminance	0.0811 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F581A #331A58

analogous

#58521A #3F581A #20581A

triadic

#3F581A #1A3F58 #581A3F

tetradic

#3F581A #1A5852 #331A58 #581A20

square

#3F581A #1A5852 #331A58 #581A20

split-complementary

#3F581A #1A2058 #521A58

monochromatic

#111807 #1D290C #3F581A #618728 #83B636

Accessibility & contrast

On white

8.01

#3F581A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3F581A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F581A

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F581A	#FFFFFF	#000000	##FFFFFF
##3F581A	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5212

Deuteranopia (green-blind)

#59501F

Tritanopia (blue-blind)

#41544B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f581a;
/* rgb */ color: rgb(63, 88, 26);
/* oklch */ color: oklch(42.6% 0.093 128.6);

Tailwind

colors: {
  custom: {
    50: '#76875a',
    500: '#3f581a',
    950: '#000000',
  },
}

SCSS

$custom: #3f581a;
$custom-light: #76875a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f581a",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 26
  },
  "hsl": {
    "h": 84.194,
    "s": 54.386,
    "l": 22.353
  },
  "oklch": {
    "l": 0.42591,
    "c": 0.09288,
    "h": 128.6
  },
  "luminance": 0.08111
}

Semantic roles & 50–950 ramp

primary

#3F581A

secondary

#5F408E

accent

#4ADE86

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #3F581A

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

Preview Lab → · Contrast checker → · Palette generator →