#3F771B#3F771B

#3F771B is a mid, vivid yellow-green. Relative luminance 0.143; OKLCH L 51.2% C 0.136 H 136.0°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F771B
RGB	rgb(63, 119, 27)
HSL	hsl(97, 63%, 29%)
HSV	hsv(97, 77%, 47%)
CMYK	cmyk(47.1%, 0%, 77.3%, 53.3%)
CIE-LAB	lab(44.70, -35.07, 42.07)
CIE-LCH	lch(44.70, 54.77, 129.81°)
OKLab	oklab(51.16% -0.0977 0.0944)
OKLCH	oklch(51.16% 0.136 136)
XYZ	xyz(8.8443, 14.3290, 3.3364)
Luminance	0.1433 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F771B #531B77

analogous

#6D771B #3F771B #1B7725

triadic

#3F771B #1B3F77 #771B3F

tetradic

#3F771B #1B6D77 #531B77 #77251B

square

#3F771B #1B6D77 #531B77 #77251B

split-complementary

#3F771B #251B77 #771B6D

monochromatic

#0D1906 #254510 #3F771B #59A926 #76D23A

Accessibility & contrast

On white

5.43

#3F771B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#3F771B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F771B

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F771B	#FFFFFF	#000000	##FFFFFF
##3F771B	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B6D08

Deuteranopia (green-blind)

#746824

Tritanopia (blue-blind)

#3D7265

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3f771b;
/* rgb */ color: rgb(63, 119, 27);
/* oklch */ color: oklch(51.2% 0.136 136.0);

Tailwind

colors: {
  custom: {
    50: '#7a9f5e',
    500: '#3f771b',
    950: '#000000',
  },
}

SCSS

$custom: #3f771b;
$custom-light: #7a9f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f771b",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 27
  },
  "hsl": {
    "h": 96.522,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.51158,
    "c": 0.13581,
    "h": 136
  },
  "luminance": 0.1433
}

Semantic roles & 50–950 ramp

primary

#3F771B

secondary

#8242AB

accent

#42E6A6

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #3F771B

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

Preview Lab → · Contrast checker → · Palette generator →