#3F681B#3F681B

#3F681B is a mid, moderate yellow-green. Relative luminance 0.110; OKLCH L 47.0% C 0.115 H 133.5°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F681B
RGB	rgb(63, 104, 27)
HSL	hsl(92, 59%, 26%)
HSV	hsv(92, 74%, 41%)
CMYK	cmyk(39.4%, 0%, 74%, 59.2%)
CIE-LAB	lab(39.64, -28.29, 36.99)
CIE-LCH	lch(39.64, 46.57, 127.41°)
OKLab	oklab(47.01% -0.0793 0.0837)
OKLCH	oklch(47.01% 0.115 133.5)
XYZ	xyz(7.1979, 11.0362, 2.7876)
Luminance	0.1104 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F681B #441B68

analogous

#65681B #3F681B #1B681D

triadic

#3F681B #1B3F68 #681B3F

tetradic

#3F681B #1B6568 #441B68 #681D1B

square

#3F681B #1B6568 #441B68 #681D1B

split-complementary

#3F681B #1D1B68 #681B65

monochromatic

#0F1806 #22370E #3F681B #5C9928 #7AC934

Accessibility & contrast

On white

6.55

#3F681B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3F681B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F681B

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F681B	#FFFFFF	#000000	##FFFFFF
##3F681B	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C5F0F

Deuteranopia (green-blind)

#675C22

Tritanopia (blue-blind)

#3F6459

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f681b;
/* rgb */ color: rgb(63, 104, 27);
/* oklch */ color: oklch(47.0% 0.115 133.5);

Tailwind

colors: {
  custom: {
    50: '#78935c',
    500: '#3f681b',
    950: '#000000',
  },
}

SCSS

$custom: #3f681b;
$custom-light: #78935c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f681b",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 27
  },
  "hsl": {
    "h": 91.948,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.47014,
    "c": 0.11534,
    "h": 133.5
  },
  "luminance": 0.11037
}

Semantic roles & 50–950 ramp

primary

#3F681B

secondary

#72429D

accent

#46E299

background

#F7F9F5

surface

#EDF1E9

border

#C8CBC5

text

#090D04

muted

#7B7E79

Preview Lab

Preview with #3F681B

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

Preview Lab → · Contrast checker → · Palette generator →