#3F971F#3F971F

#3F971F is a mid, vivid green. Relative luminance 0.233; OKLCH L 60.0% C 0.174 H 139.1°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F971F
RGB	rgb(63, 151, 31)
HSL	hsl(104, 66%, 36%)
HSV	hsv(104, 79%, 59%)
CMYK	cmyk(58.3%, 0%, 79.5%, 40.8%)
CIE-LAB	lab(55.37, -47.63, 51.02)
CIE-LCH	lch(55.37, 69.79, 133.03°)
OKLab	oklab(59.95% -0.1312 0.1137)
OKLCH	oklch(59.95% 0.174 139.1)
XYZ	xyz(13.3633, 23.2878, 5.0868)
Luminance	0.2329 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F971F #771F97

analogous

#7B971F #3F971F #1F973B

triadic

#3F971F #1F3F97 #971F3F

tetradic

#3F971F #1F7B97 #771F97 #973B1F

square

#3F971F #1F7B97 #771F97 #973B1F

split-complementary

#3F971F #3B1F97 #971F7B

monochromatic

#15310A #2A6415 #3F971F #54CA29 #79DC54

Accessibility & contrast

On white

3.71

#3F971F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#3F971F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F971F

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F971F	#FFFFFF	#000000	##000000
##3F971F	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9C8900

Deuteranopia (green-blind)

#91822D

Tritanopia (blue-blind)

#359281

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f971f;
/* rgb */ color: rgb(63, 151, 31);
/* oklch */ color: oklch(60.0% 0.174 139.1);

Tailwind

colors: {
  custom: {
    50: '#7fb665',
    500: '#3f971f',
    950: '#000000',
  },
}

SCSS

$custom: #3f971f;
$custom-light: #7fb665;
$custom-dark: #000000;

JSON

{
  "hex": "#3f971f",
  "rgb": {
    "r": 63,
    "g": 151,
    "b": 31
  },
  "hsl": {
    "h": 104,
    "s": 65.934,
    "l": 35.686
  },
  "oklch": {
    "l": 0.59951,
    "c": 0.1736,
    "h": 139.1
  },
  "luminance": 0.23289
}

Semantic roles & 50–950 ramp

primary

#3F971F

secondary

#A252BF

accent

#3FE9BC

background

#F8FBF6

surface

#EFF6EB

border

#CAD0C6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #3F971F

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

Preview Lab → · Contrast checker → · Palette generator →