#3FB73B#3FB73B

#3FB73B is a light, vivid green. Relative luminance 0.352; OKLCH L 68.7% C 0.195 H 142.7°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#3FB73B
RGB	rgb(63, 183, 59)
HSL	hsl(118, 51%, 47%)
HSV	hsv(118, 68%, 72%)
CMYK	cmyk(65.6%, 0%, 67.8%, 28.2%)
CIE-LAB	lab(65.93, -56.90, 51.34)
CIE-LCH	lch(65.93, 76.64, 137.94°)
OKLab	oklab(68.75% -0.1547 0.1181)
OKLCH	oklch(68.75% 0.195 142.7)
XYZ	xyz(19.7717, 35.2375, 9.8964)
Luminance	0.3524 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB73B #B33BB7

analogous

#7DB73B #3FB73B #3BB775

triadic

#3FB73B #3B3FB7 #B73B3F

tetradic

#3FB73B #3B7DB7 #B33BB7 #B7753B

square

#3FB73B #3B7DB7 #B33BB7 #B7753B

split-complementary

#3FB73B #753BB7 #B73B7D

monochromatic

#1F5A1D #2F892C #3FB73B #66CD63 #93DC91

Accessibility & contrast

On white

2.61

#3FB73B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#3FB73B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB73B

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB73B	#FFFFFF	#000000	##000000
##3FB73B	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA62A

Deuteranopia (green-blind)

#AD9C46

Tritanopia (blue-blind)

#25B29E

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #3fb73b;
/* rgb */ color: rgb(63, 183, 59);
/* oklch */ color: oklch(68.7% 0.195 142.7);

Tailwind

colors: {
  custom: {
    50: '#83ce77',
    500: '#3fb73b',
    950: '#000000',
  },
}

SCSS

$custom: #3fb73b;
$custom-light: #83ce77;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb73b",
  "rgb": {
    "r": 63,
    "g": 183,
    "b": 59
  },
  "hsl": {
    "h": 118.065,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.68749,
    "c": 0.19462,
    "h": 142.7
  },
  "luminance": 0.3524
}

Semantic roles & 50–950 ramp

primary

#3FB73B

secondary

#C487C6

accent

#4DDBD6

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #3FB73B

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

Preview Lab → · Contrast checker → · Palette generator →