#3F931B#3F931B

#3F931B is a mid, vivid green. Relative luminance 0.220; OKLCH L 58.8% C 0.171 H 138.6°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3F931B
RGB	rgb(63, 147, 27)
HSL	hsl(102, 69%, 34%)
HSV	hsv(102, 82%, 58%)
CMYK	cmyk(57.1%, 0%, 81.6%, 42.4%)
CIE-LAB	lab(54.03, -46.36, 51.01)
CIE-LCH	lch(54.03, 68.93, 132.27°)
OKLab	oklab(58.84% -0.128 0.113)
OKLCH	oklch(58.84% 0.171 138.6)
XYZ	xyz(12.6810, 22.0023, 4.6153)
Luminance	0.2200 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F931B #6F1B93

analogous

#7B931B #3F931B #1B9333

triadic

#3F931B #1B3F93 #931B3F

tetradic

#3F931B #1B7B93 #6F1B93 #93331B

square

#3F931B #1B7B93 #6F1B93 #93331B

split-complementary

#3F931B #331B93 #931B7B

monochromatic

#132C08 #295F12 #3F931B #55C724 #77DE4B

Accessibility & contrast

On white

3.89

#3F931B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#3F931B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F931B

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F931B	#FFFFFF	#000000	##000000
##3F931B	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#988500

Deuteranopia (green-blind)

#8D7F29

Tritanopia (blue-blind)

#378E7D

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f931b;
/* rgb */ color: rgb(63, 147, 27);
/* oklch */ color: oklch(58.8% 0.171 138.6);

Tailwind

colors: {
  custom: {
    50: '#7eb363',
    500: '#3f931b',
    950: '#000000',
  },
}

SCSS

$custom: #3f931b;
$custom-light: #7eb363;
$custom-dark: #000000;

JSON

{
  "hex": "#3f931b",
  "rgb": {
    "r": 63,
    "g": 147,
    "b": 27
  },
  "hsl": {
    "h": 102,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.58839,
    "c": 0.17081,
    "h": 138.6
  },
  "luminance": 0.22003
}

Semantic roles & 50–950 ramp

primary

#3F931B

secondary

#9C4AC0

accent

#3CECB7

background

#F8FBF6

surface

#EFF6EB

border

#CAD0C6

text

#0B1106

muted

#7C807A

Preview Lab

Preview with #3F931B

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

Preview Lab → · Contrast checker → · Palette generator →