#3FB540#3FB540

#3FB540 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.3% C 0.189 H 143.3°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3FB540
RGB	rgb(63, 181, 64)
HSL	hsl(121, 48%, 48%)
HSV	hsv(121, 65%, 71%)
CMYK	cmyk(65.2%, 0%, 64.6%, 29%)
CIE-LAB	lab(65.34, -55.70, 48.59)
CIE-LCH	lch(65.34, 73.92, 138.90°)
OKLab	oklab(68.27% -0.1512 0.1128)
OKLCH	oklch(68.27% 0.189 143.3)
XYZ	xyz(19.4980, 34.4727, 10.4758)
Luminance	0.3448 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB540 #B53FB4

analogous

#79B53F #3FB540 #3FB57B

triadic

#3FB540 #403FB5 #B5403F

tetradic

#3FB540 #3F79B5 #B53FB4 #B57B3F

square

#3FB540 #3F79B5 #B53FB4 #B57B3F

split-complementary

#3FB540 #7B3FB5 #B53F79

monochromatic

#1F5A20 #2F8830 #3FB540 #67CA68 #94DA95

Accessibility & contrast

On white

2.66

#3FB540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#3FB540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB540

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB540	#FFFFFF	#000000	##000000
##3FB540	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A532

Deuteranopia (green-blind)

#AA9B4A

Tritanopia (blue-blind)

#24B09D

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #3fb540;
/* rgb */ color: rgb(63, 181, 64);
/* oklch */ color: oklch(68.3% 0.189 143.3);

Tailwind

colors: {
  custom: {
    50: '#83cc7a',
    500: '#3fb540',
    950: '#000000',
  },
}

SCSS

$custom: #3fb540;
$custom-light: #83cc7a;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb540",
  "rgb": {
    "r": 63,
    "g": 181,
    "b": 64
  },
  "hsl": {
    "h": 120.508,
    "s": 48.361,
    "l": 47.843
  },
  "oklch": {
    "l": 0.68268,
    "c": 0.18866,
    "h": 143.3
  },
  "luminance": 0.34475
}

Semantic roles & 50–950 ramp

primary

#3FB540

secondary

#C58AC5

accent

#50D7D8

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #3FB540

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

Preview Lab → · Contrast checker → · Palette generator →