#3F8018#3F8018

#3F8018 is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.6% C 0.149 H 136.8°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8018
RGB	rgb(63, 128, 24)
HSL	hsl(98, 68%, 30%)
HSV	hsv(98, 81%, 50%)
CMYK	cmyk(50.8%, 0%, 81.3%, 49.8%)
CIE-LAB	lab(47.70, -39.06, 46.02)
CIE-LCH	lch(47.70, 60.35, 130.32°)
OKLab	oklab(53.62% -0.1086 0.1021)
OKLCH	oklch(53.62% 0.149 136.8)
XYZ	xyz(9.9336, 16.5604, 3.5370)
Luminance	0.1656 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8018 #591880

analogous

#738018 #3F8018 #188025

triadic

#3F8018 #183F80 #80183F

tetradic

#3F8018 #187380 #591880 #802518

square

#3F8018 #187380 #591880 #802518

split-complementary

#3F8018 #251880 #801873

monochromatic

#0D1A05 #264C0E #3F8018 #58B422 #75DA39

Accessibility & contrast

On white

4.87

#3F8018 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3F8018 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F8018

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8018	#FFFFFF	#000000	##FFFFFF
##3F8018	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)

#7C6F24

Tritanopia (blue-blind)

#3B7B6D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f8018;
/* rgb */ color: rgb(63, 128, 24);
/* oklch */ color: oklch(53.6% 0.149 136.8);

Tailwind

colors: {
  custom: {
    50: '#7ba55e',
    500: '#3f8018',
    950: '#000000',
  },
}

SCSS

$custom: #3f8018;
$custom-light: #7ba55e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8018",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 24
  },
  "hsl": {
    "h": 97.5,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.53618,
    "c": 0.14909,
    "h": 136.8
  },
  "luminance": 0.16561
}

Semantic roles & 50–950 ramp

primary

#3F8018

secondary

#8840B4

accent

#3DEBAA

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F8018

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

Preview Lab → · Contrast checker → · Palette generator →