#3F781F#3F781F

#3F781F is a mid, vivid yellow-green. Relative luminance 0.146; OKLCH L 51.5% C 0.135 H 136.6°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F781F
RGB	rgb(63, 120, 31)
HSL	hsl(98, 59%, 30%)
HSV	hsv(98, 74%, 47%)
CMYK	cmyk(47.5%, 0%, 74.2%, 52.9%)
CIE-LAB	lab(45.06, -35.20, 40.87)
CIE-LCH	lch(45.06, 53.94, 130.73°)
OKLab	oklab(51.47% -0.0977 0.0925)
OKLCH	oklch(51.47% 0.135 136.6)
XYZ	xyz(9.0134, 14.5881, 3.6369)
Luminance	0.1459 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F781F #581F78

analogous

#6C781F #3F781F #1F782C

triadic

#3F781F #1F3F78 #781F3F

tetradic

#3F781F #1F6C78 #581F78 #782C1F

square

#3F781F #1F6C78 #581F78 #782C1F

split-complementary

#3F781F #2C1F78 #781F6C

monochromatic

#0D1806 #254712 #3F781F #59A92C #75CE43

Accessibility & contrast

On white

5.36

#3F781F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#3F781F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F781F

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F781F	#FFFFFF	#000000	##FFFFFF
##3F781F	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)

#7C6E10

Deuteranopia (green-blind)

#756928

Tritanopia (blue-blind)

#3C7367

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f781f;
/* rgb */ color: rgb(63, 120, 31);
/* oklch */ color: oklch(51.5% 0.135 136.6);

Tailwind

colors: {
  custom: {
    50: '#7a9f61',
    500: '#3f781f',
    950: '#000000',
  },
}

SCSS

$custom: #3f781f;
$custom-light: #7a9f61;
$custom-dark: #000000;

JSON

{
  "hex": "#3f781f",
  "rgb": {
    "r": 63,
    "g": 120,
    "b": 31
  },
  "hsl": {
    "h": 98.427,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.51466,
    "c": 0.13454,
    "h": 136.6
  },
  "luminance": 0.14589
}

Semantic roles & 50–950 ramp

primary

#3F781F

secondary

#8747AB

accent

#46E2AA

background

#F7F9F5

surface

#EEF2EA

border

#C9CCC6

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #3F781F

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

Preview Lab → · Contrast checker → · Palette generator →