#3F811A#3F811A

#3F811A is a mid, vivid yellow-green. Relative luminance 0.168; OKLCH L 53.9% C 0.149 H 137.0°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F811A
RGB	rgb(63, 129, 26)
HSL	hsl(98, 66%, 30%)
HSV	hsv(98, 80%, 51%)
CMYK	cmyk(51.2%, 0%, 79.8%, 49.4%)
CIE-LAB	lab(48.05, -39.34, 45.68)
CIE-LCH	lch(48.05, 60.29, 130.74°)
OKLab	oklab(53.91% -0.1093 0.1017)
OKLCH	oklch(53.91% 0.149 137)
XYZ	xyz(10.0863, 16.8311, 3.6943)
Luminance	0.1683 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F811A #5C1A81

analogous

#72811A #3F811A #1A8129

triadic

#3F811A #1A3F81 #811A3F

tetradic

#3F811A #1A7281 #5C1A81 #81291A

square

#3F811A #1A7281 #5C1A81 #81291A

split-complementary

#3F811A #291A81 #811A72

monochromatic

#0D1B05 #264E10 #3F811A #58B424 #75D83D

Accessibility & contrast

On white

4.81

#3F811A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3F811A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F811A

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F811A	#FFFFFF	#000000	##FFFFFF
##3F811A	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867500

Deuteranopia (green-blind)

#7D7025

Tritanopia (blue-blind)

#3B7C6E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f811a;
/* rgb */ color: rgb(63, 129, 26);
/* oklch */ color: oklch(53.9% 0.149 137.0);

Tailwind

colors: {
  custom: {
    50: '#7ba65f',
    500: '#3f811a',
    950: '#000000',
  },
}

SCSS

$custom: #3f811a;
$custom-light: #7ba65f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f811a",
  "rgb": {
    "r": 63,
    "g": 129,
    "b": 26
  },
  "hsl": {
    "h": 98.447,
    "s": 66.452,
    "l": 30.392
  },
  "oklch": {
    "l": 0.53906,
    "c": 0.14929,
    "h": 137
  },
  "luminance": 0.16832
}

Semantic roles & 50–950 ramp

primary

#3F811A

secondary

#8C42B5

accent

#3EE9AC

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F811A

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

Preview Lab → · Contrast checker → · Palette generator →