#3FA81B#3FA81B

#3FA81B is a light, vivid green. Relative luminance 0.291; OKLCH L 64.5% C 0.195 H 139.6°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#3FA81B
RGB	rgb(63, 168, 27)
HSL	hsl(105, 72%, 38%)
HSV	hsv(105, 84%, 66%)
CMYK	cmyk(62.5%, 0%, 83.9%, 34.1%)
CIE-LAB	lab(60.90, -53.98, 57.32)
CIE-LCH	lch(60.90, 78.74, 133.28°)
OKLab	oklab(64.52% -0.1485 0.1263)
OKLCH	oklch(64.52% 0.195 139.6)
XYZ	xyz(16.2496, 29.1396, 5.8049)
Luminance	0.2914 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FA81B #841BA8

analogous

#85A81B #3FA81B #1BA83D

triadic

#3FA81B #1B3FA8 #A81B3F

tetradic

#3FA81B #1B85A8 #841BA8 #A83D1B

square

#3FA81B #1B85A8 #841BA8 #A83D1B

split-complementary

#3FA81B #3D1BA8 #A81B85

monochromatic

#173F0A #2B7313 #3FA81B #53DC24 #7DE459

Accessibility & contrast

On white

3.08

#3FA81B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#3FA81B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3FA81B

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FA81B	#FFFFFF	#000000	##000000
##3FA81B	1.00	3.08	6.83	6.83
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9800

Deuteranopia (green-blind)

#A0902E

Tritanopia (blue-blind)

#31A28F

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3fa81b;
/* rgb */ color: rgb(63, 168, 27);
/* oklch */ color: oklch(64.5% 0.195 139.6);

Tailwind

colors: {
  custom: {
    50: '#82c366',
    500: '#3fa81b',
    950: '#000000',
  },
}

SCSS

$custom: #3fa81b;
$custom-light: #82c366;
$custom-dark: #000000;

JSON

{
  "hex": "#3fa81b",
  "rgb": {
    "r": 63,
    "g": 168,
    "b": 27
  },
  "hsl": {
    "h": 104.681,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.64524,
    "c": 0.19493,
    "h": 139.6
  },
  "luminance": 0.29141
}

Semantic roles & 50–950 ramp

primary

#3FA81B

secondary

#AB57C8

accent

#39EFC0

background

#F8FCF6

surface

#F0F8EB

border

#CBD1C6

text

#0C1306

muted

#7D827A

Preview Lab

Preview with #3FA81B

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

Preview Lab → · Contrast checker → · Palette generator →