#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
RGB	rgb(63, 180, 33)
HSL	hsl(108, 69%, 42%)
HSV	hsv(108, 82%, 71%)
CMYK	cmyk(65%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(64.81, -57.80, 59.28)
CIE-LCH	lch(64.81, 82.79, 134.27°)
OKLab	oklab(67.77% -0.1585 0.1312)
OKLCH	oklch(67.77% 0.206 140.4)
XYZ	xyz(18.6448, 33.8072, 6.9814)
Luminance	0.3381 (WCAG relative)
Temperature	neutral
Family	green

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
##3FB421	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

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 →