#3FB421#3FB421

#3FB421 is a light, highly saturated green. Relative luminance 0.338; OKLCH L 67.8% C 0.206 H 140.4°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX#3FB421
RGBrgb(63, 180, 33)
HSLhsl(108, 69%, 42%)
HSVhsv(108, 82%, 71%)
CMYKcmyk(65%, 0%, 81.7%, 29.4%)
CIE-LABlab(64.81, -57.80, 59.28)
CIE-LCHlch(64.81, 82.79, 134.27°)
OKLaboklab(67.77% -0.1585 0.1312)
OKLCHoklch(67.77% 0.206 140.4)
XYZxyz(18.6448, 33.8072, 6.9814)
Luminance0.3381 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3FB421 #9621B4
analogous
#89B421 #3FB421 #21B44D
triadic
#3FB421 #213FB4 #B4213F
tetradic
#3FB421 #2189B4 #9621B4 #B44D21
square
#3FB421 #2189B4 #9621B4 #B44D21
split-complementary
#3FB421 #4D21B4 #B42189
monochromatic
#1B4D0E #2D8018 #3FB421 #59DA38 #84E46B

Accessibility & contrast

On white

2.71
#3FB421 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.76
#3FB421 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB421
7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3FB421#FFFFFF#000000##000000
##3FB4211.002.717.767.76
#FFFFFF2.711.0021.0021.00
#0000007.7621.001.001.00
##0000007.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#B9A300
Deuteranopia (green-blind)
#AB9A34
Tritanopia (blue-blind)
#2BAE99
Achromatopsia (no color)
#9D9D9D

Design tokens & code

CSS
--color: #3fb421;
/* rgb */ color: rgb(63, 180, 33);
/* oklch */ color: oklch(67.8% 0.206 140.4);
Tailwind
colors: {
  custom: {
    50: '#84cb6a',
    500: '#3fb421',
    950: '#000000',
  },
}
SCSS
$custom: #3fb421;
$custom-light: #84cb6a;
$custom-dark: #000000;
JSON
{
  "hex": "#3fb421",
  "rgb": {
    "r": 63,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 107.755,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.67766,
    "c": 0.20574,
    "h": 140.4
  },
  "luminance": 0.33809
}

Semantic roles & 50–950 ramp

primary
#3FB421
secondary
#B667CA
accent
#3CECC8
background
#F8FCF6
surface
#F0F9EC
border
#CBD2C7
text
#0C1307
muted
#7D827A

Preview Lab

Preview with #3FB421

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

Preview Lab → · Contrast checker → · Palette generator →

#3FB421 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva