#3FBC21#3FBC21

#3FBC21 is a light, highly saturated green. Relative luminance 0.371; OKLCH L 69.9% C 0.214 H 140.6°. Best body text is #000000 at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#3FBC21
RGB	rgb(63, 188, 33)
HSL	hsl(108, 70%, 43%)
HSV	hsv(108, 82%, 74%)
CMYK	cmyk(66.5%, 0%, 82.4%, 26.3%)
CIE-LAB	lab(67.38, -60.47, 61.64)
CIE-LCH	lch(67.38, 86.35, 134.45°)
OKLab	oklab(69.89% -0.1656 0.1362)
OKLCH	oklch(69.89% 0.214 140.6)
XYZ	xyz(20.3066, 37.1309, 7.5354)
Luminance	0.3713 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FBC21 #9E21BC

analogous

#8CBC21 #3FBC21 #21BC50

triadic

#3FBC21 #213FBC #BC213F

tetradic

#3FBC21 #218CBC #9E21BC #BC5021

square

#3FBC21 #218CBC #9E21BC #BC5021

split-complementary

#3FBC21 #5021BC #BC218C

monochromatic

#1C540F #2E8818 #3FBC21 #5CDD3D #88E671

Accessibility & contrast

On white

2.49

#3FBC21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.43

#3FBC21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FBC21

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FBC21	#FFFFFF	#000000	##000000
##3FBC21	1.00	2.49	8.43	8.43
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.43	21.00	1.00	1.00
##000000	8.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#B2A035

Tritanopia (blue-blind)

#28B6A0

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #3fbc21;
/* rgb */ color: rgb(63, 188, 33);
/* oklch */ color: oklch(69.9% 0.214 140.6);

Tailwind

colors: {
  custom: {
    50: '#85d16b',
    500: '#3fbc21',
    950: '#000000',
  },
}

SCSS

$custom: #3fbc21;
$custom-light: #85d16b;
$custom-dark: #000000;

JSON

{
  "hex": "#3fbc21",
  "rgb": {
    "r": 63,
    "g": 188,
    "b": 33
  },
  "hsl": {
    "h": 108.387,
    "s": 70.136,
    "l": 43.333
  },
  "oklch": {
    "l": 0.69893,
    "c": 0.21443,
    "h": 140.6
  },
  "luminance": 0.37133
}

Semantic roles & 50–950 ramp

primary

#3FBC21

secondary

#BA6CCD

accent

#3BEDCA

background

#F8FDF6

surface

#F0FAEC

border

#CBD3C7

text

#0D1407

muted

#7D837A

Preview Lab

Preview with #3FBC21

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

Preview Lab → · Contrast checker → · Palette generator →