#3F8017#3F8017

#3F8017 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.6% C 0.150 H 136.7°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8017
RGB	rgb(63, 128, 23)
HSL	hsl(97, 70%, 30%)
HSV	hsv(97, 82%, 50%)
CMYK	cmyk(50.8%, 0%, 82%, 49.8%)
CIE-LAB	lab(47.70, -39.11, 46.33)
CIE-LCH	lch(47.70, 60.63, 130.17°)
OKLab	oklab(53.61% -0.1088 0.1026)
OKLCH	oklch(53.61% 0.15 136.7)
XYZ	xyz(9.9234, 16.5563, 3.4832)
Luminance	0.1656 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8017 #581780

analogous

#748017 #3F8017 #178024

triadic

#3F8017 #173F80 #80173F

tetradic

#3F8017 #177480 #581780 #802417

square

#3F8017 #177480 #581780 #802417

split-complementary

#3F8017 #241780 #801774

monochromatic

#0D1A05 #254C0E #3F8017 #59B420 #75DB36

Accessibility & contrast

On white

4.87

#3F8017 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3F8017 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F8017

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8017	#FFFFFF	#000000	##FFFFFF
##3F8017	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857500

Deuteranopia (green-blind)

#7C6F23

Tritanopia (blue-blind)

#3B7B6D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f8017;
/* rgb */ color: rgb(63, 128, 23);
/* oklch */ color: oklch(53.6% 0.150 136.7);

Tailwind

colors: {
  custom: {
    50: '#7ba55e',
    500: '#3f8017',
    950: '#000000',
  },
}

SCSS

$custom: #3f8017;
$custom-light: #7ba55e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8017",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 23
  },
  "hsl": {
    "h": 97.143,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.53612,
    "c": 0.14959,
    "h": 136.7
  },
  "luminance": 0.16557
}

Semantic roles & 50–950 ramp

primary

#3F8017

secondary

#873EB4

accent

#3BECA9

background

#F7FAF5

surface

#EEF4E9

border

#C9CEC5

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F8017

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

Preview Lab → · Contrast checker → · Palette generator →