#3F8E17#3F8E17

#3F8E17 is a mid, vivid yellow-green. Relative luminance 0.205; OKLCH L 57.5% C 0.167 H 137.9°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F8E17
RGB	rgb(63, 142, 23)
HSL	hsl(100, 72%, 32%)
HSV	hsv(100, 84%, 56%)
CMYK	cmyk(55.6%, 0%, 83.8%, 44.3%)
CIE-LAB	lab(52.36, -44.67, 50.63)
CIE-LCH	lch(52.36, 67.52, 131.42°)
OKLab	oklab(57.45% -0.1237 0.1117)
OKLCH	oklch(57.45% 0.167 137.9)
XYZ	xyz(11.8771, 20.4637, 4.1345)
Luminance	0.2046 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8E17 #66178E

analogous

#7A8E17 #3F8E17 #178E2B

triadic

#3F8E17 #173F8E #8E173F

tetradic

#3F8E17 #177A8E #66178E #8E2B17

square

#3F8E17 #177A8E #66178E #8E2B17

split-complementary

#3F8E17 #2B178E #8E177A

monochromatic

#102506 #28590E #3F8E17 #56C320 #75E03F

Accessibility & contrast

On white

4.12

#3F8E17 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3F8E17 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8E17

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8E17	#FFFFFF	#000000	##000000
##3F8E17	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#938100

Deuteranopia (green-blind)

#897A26

Tritanopia (blue-blind)

#388979

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f8e17;
/* rgb */ color: rgb(63, 142, 23);
/* oklch */ color: oklch(57.5% 0.167 137.9);

Tailwind

colors: {
  custom: {
    50: '#7db060',
    500: '#3f8e17',
    950: '#000000',
  },
}

SCSS

$custom: #3f8e17;
$custom-light: #7db060;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8e17",
  "rgb": {
    "r": 63,
    "g": 142,
    "b": 23
  },
  "hsl": {
    "h": 99.832,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.57453,
    "c": 0.16667,
    "h": 137.9
  },
  "luminance": 0.20465
}

Semantic roles & 50–950 ramp

primary

#3F8E17

secondary

#9540C0

accent

#39EFB2

background

#F8FAF6

surface

#EFF5EB

border

#CACFC6

text

#0B1005

muted

#7C7F7A

Preview Lab

Preview with #3F8E17

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

Preview Lab → · Contrast checker → · Palette generator →