#3F781E#3F781E

#3F781E is a mid, vivid yellow-green. Relative luminance 0.146; OKLCH L 51.5% C 0.135 H 136.5°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F781E
RGB	rgb(63, 120, 30)
HSL	hsl(98, 60%, 29%)
HSV	hsv(98, 75%, 47%)
CMYK	cmyk(47.5%, 0%, 75%, 52.9%)
CIE-LAB	lab(45.06, -35.28, 41.27)
CIE-LCH	lch(45.06, 54.29, 130.53°)
OKLab	oklab(51.46% -0.098 0.0931)
OKLCH	oklch(51.46% 0.135 136.5)
XYZ	xyz(9.0005, 14.5829, 3.5686)
Luminance	0.1458 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F781E #571E78

analogous

#6C781E #3F781E #1E782A

triadic

#3F781E #1E3F78 #781E3F

tetradic

#3F781E #1E6C78 #571E78 #782A1E

square

#3F781E #1E6C78 #571E78 #782A1E

split-complementary

#3F781E #2A1E78 #781E6C

monochromatic

#0D1806 #254712 #3F781E #59A92A #75CF41

Accessibility & contrast

On white

5.36

#3F781E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#3F781E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F781E

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F781E	#FFFFFF	#000000	##FFFFFF
##3F781E	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6E0E

Deuteranopia (green-blind)

#756927

Tritanopia (blue-blind)

#3C7366

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f781e;
/* rgb */ color: rgb(63, 120, 30);
/* oklch */ color: oklch(51.5% 0.135 136.5);

Tailwind

colors: {
  custom: {
    50: '#7a9f60',
    500: '#3f781e',
    950: '#000000',
  },
}

SCSS

$custom: #3f781e;
$custom-light: #7a9f60;
$custom-dark: #000000;

JSON

{
  "hex": "#3f781e",
  "rgb": {
    "r": 63,
    "g": 120,
    "b": 30
  },
  "hsl": {
    "h": 98,
    "s": 60,
    "l": 29.412
  },
  "oklch": {
    "l": 0.51457,
    "c": 0.13521,
    "h": 136.5
  },
  "luminance": 0.14583
}

Semantic roles & 50–950 ramp

primary

#3F781E

secondary

#8646AC

accent

#45E3A9

background

#F7F9F5

surface

#EEF2EA

border

#C9CCC6

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #3F781E

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

Preview Lab → · Contrast checker → · Palette generator →