#3F781A#3F781A

#3F781A is a mid, vivid yellow-green. Relative luminance 0.146; OKLCH L 51.4% C 0.138 H 136.0°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3F781A
RGB	rgb(63, 120, 26)
HSL	hsl(96, 64%, 29%)
HSV	hsv(96, 78%, 47%)
CMYK	cmyk(47.5%, 0%, 78.3%, 52.9%)
CIE-LAB	lab(45.03, -35.57, 42.77)
CIE-LCH	lch(45.03, 55.62, 129.75°)
OKLab	oklab(51.43% -0.0991 0.0957)
OKLCH	oklch(51.43% 0.138 136)
XYZ	xyz(8.9526, 14.5637, 3.3164)
Luminance	0.1456 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F781A #531A78

analogous

#6E781A #3F781A #1A7824

triadic

#3F781A #1A3F78 #781A3F

tetradic

#3F781A #1A6E78 #531A78 #78241A

square

#3F781A #1A6E78 #531A78 #78241A

split-complementary

#3F781A #241A78 #781A6E

monochromatic

#0D1905 #25460F #3F781A #59AA25 #76D438

Accessibility & contrast

On white

5.37

#3F781A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3F781A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F781A

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F781A	#FFFFFF	#000000	##FFFFFF
##3F781A	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6D05

Deuteranopia (green-blind)

#756924

Tritanopia (blue-blind)

#3D7366

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f781a;
/* rgb */ color: rgb(63, 120, 26);
/* oklch */ color: oklch(51.4% 0.138 136.0);

Tailwind

colors: {
  custom: {
    50: '#7a9f5e',
    500: '#3f781a',
    950: '#000000',
  },
}

SCSS

$custom: #3f781a;
$custom-light: #7a9f5e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f781a",
  "rgb": {
    "r": 63,
    "g": 120,
    "b": 26
  },
  "hsl": {
    "h": 96.383,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.51427,
    "c": 0.13772,
    "h": 136
  },
  "luminance": 0.14564
}

Semantic roles & 50–950 ramp

primary

#3F781A

secondary

#8241AC

accent

#40E7A6

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #3F781A

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

Preview Lab → · Contrast checker → · Palette generator →