#3F8A17#3F8A17

#3F8A17 is a mid, vivid yellow-green. Relative luminance 0.193; OKLCH L 56.4% C 0.162 H 137.6°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F8A17
RGB	rgb(63, 138, 23)
HSL	hsl(99, 71%, 32%)
HSV	hsv(99, 83%, 54%)
CMYK	cmyk(54.3%, 0%, 83.3%, 45.9%)
CIE-LAB	lab(51.03, -43.12, 49.42)
CIE-LCH	lch(51.03, 65.59, 131.10°)
OKLab	oklab(56.36% -0.1196 0.1091)
OKLCH	oklch(56.36% 0.162 137.6)
XYZ	xyz(11.2927, 19.2947, 3.9396)
Luminance	0.1930 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8A17 #62178A

analogous

#798A17 #3F8A17 #178A28

triadic

#3F8A17 #173F8A #8A173F

tetradic

#3F8A17 #17798A #62178A #8A2817

square

#3F8A17 #17798A #62178A #8A2817

split-complementary

#3F8A17 #28178A #8A1779

monochromatic

#0F2106 #27560E #3F8A17 #57BE20 #75DF3D

Accessibility & contrast

On white

4.32

#3F8A17 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#3F8A17 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8A17

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8A17	#FFFFFF	#000000	##000000
##3F8A17	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7D00

Deuteranopia (green-blind)

#857725

Tritanopia (blue-blind)

#398575

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f8a17;
/* rgb */ color: rgb(63, 138, 23);
/* oklch */ color: oklch(56.4% 0.162 137.6);

Tailwind

colors: {
  custom: {
    50: '#7dad5f',
    500: '#3f8a17',
    950: '#000000',
  },
}

SCSS

$custom: #3f8a17;
$custom-light: #7dad5f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8a17",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 23
  },
  "hsl": {
    "h": 99.13,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56359,
    "c": 0.16188,
    "h": 137.6
  },
  "luminance": 0.19296
}

Semantic roles & 50–950 ramp

primary

#3F8A17

secondary

#923FBE

accent

#3AEEAF

background

#F8FAF5

surface

#EFF4EA

border

#CACEC6

text

#0A1005

muted

#7C7F79

Preview Lab

Preview with #3F8A17

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

Preview Lab → · Contrast checker → · Palette generator →