#3F5811#3F5811

#3F5811 is a dark, moderate yellow-green. Relative luminance 0.081; OKLCH L 42.5% C 0.100 H 127.5°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F5811
RGB	rgb(63, 88, 17)
HSL	hsl(81, 68%, 21%)
HSV	hsv(81, 81%, 35%)
CMYK	cmyk(28.4%, 0%, 80.7%, 65.5%)
CIE-LAB	lab(34.14, -21.10, 35.58)
CIE-LCH	lch(34.14, 41.36, 120.67°)
OKLab	oklab(42.51% -0.0606 0.0791)
OKLCH	oklch(42.51% 0.1 127.5)
XYZ	xyz(5.6408, 8.0766, 1.7919)
Luminance	0.0808 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5811 #2A1158

analogous

#584D11 #3F5811 #1B5811

triadic

#3F5811 #113F58 #58113F

tetradic

#3F5811 #11584D #2A1158 #58111B

square

#3F5811 #11584D #2A1158 #58111B

split-complementary

#3F5811 #111B58 #4D1158

monochromatic

#121A05 #1A2507 #3F5811 #648B1B #88BF25

Accessibility & contrast

On white

8.03

#3F5811 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3F5811 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F5811

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5811	#FFFFFF	#000000	##FFFFFF
##3F5811	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5103

Deuteranopia (green-blind)

#595018

Tritanopia (blue-blind)

#42544A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f5811;
/* rgb */ color: rgb(63, 88, 17);
/* oklch */ color: oklch(42.5% 0.100 127.5);

Tailwind

colors: {
  custom: {
    50: '#778755',
    500: '#3f5811',
    950: '#000000',
  },
}

SCSS

$custom: #3f5811;
$custom-light: #778755;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5811",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 17
  },
  "hsl": {
    "h": 81.127,
    "s": 67.619,
    "l": 20.588
  },
  "oklch": {
    "l": 0.42512,
    "c": 0.09966,
    "h": 127.5
  },
  "luminance": 0.08077
}

Semantic roles & 50–950 ramp

primary

#3F5811

secondary

#553491

accent

#3DEA7A

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B03

muted

#7B7C78

Preview Lab

Preview with #3F5811

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

Preview Lab → · Contrast checker → · Palette generator →