#4FC21C#4FC21C

#4FC21C is a light, highly saturated green. Relative luminance 0.403; OKLCH L 71.9% C 0.217 H 138.8°. Best body text is #000000 at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#4FC21C
RGB	rgb(79, 194, 28)
HSL	hsl(102, 75%, 44%)
HSV	hsv(102, 86%, 76%)
CMYK	cmyk(59.3%, 0%, 85.6%, 23.9%)
CIE-LAB	lab(69.70, -59.08, 65.11)
CIE-LCH	lch(69.70, 87.92, 132.22°)
OKLab	oklab(71.94% -0.1631 0.1426)
OKLCH	oklch(71.94% 0.217 138.8)
XYZ	xyz(22.7249, 40.3276, 7.6848)
Luminance	0.4033 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FC21C #8F1CC2

analogous

#A2C21C #4FC21C #1CC23C

triadic

#4FC21C #1C4FC2 #C21C4F

tetradic

#4FC21C #1CA2C2 #8F1CC2 #C23C1C

square

#4FC21C #1CA2C2 #8F1CC2 #C23C1C

split-complementary

#4FC21C #3C1CC2 #C21CA2

monochromatic

#23570D #398D14 #4FC21C #6DE239 #94EA6E

Accessibility & contrast

On white

2.32

#4FC21C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.07

#4FC21C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FC21C

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FC21C	#FFFFFF	#000000	##000000
##4FC21C	1.00	2.32	9.07	9.07
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.07	21.00	1.00	1.00
##000000	9.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B000

Deuteranopia (green-blind)

#BAA733

Tritanopia (blue-blind)

#42BBA5

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #4fc21c;
/* rgb */ color: rgb(79, 194, 28);
/* oklch */ color: oklch(71.9% 0.217 138.8);

Tailwind

colors: {
  custom: {
    50: '#8ed56a',
    500: '#4fc21c',
    950: '#000000',
  },
}

SCSS

$custom: #4fc21c;
$custom-light: #8ed56a;
$custom-dark: #000000;

JSON

{
  "hex": "#4fc21c",
  "rgb": {
    "r": 79,
    "g": 194,
    "b": 28
  },
  "hsl": {
    "h": 101.566,
    "s": 74.775,
    "l": 43.529
  },
  "oklch": {
    "l": 0.71939,
    "c": 0.21665,
    "h": 138.8
  },
  "luminance": 0.4033
}

Semantic roles & 50–950 ramp

primary

#4FC21C

secondary

#B16AD0

accent

#36F1B8

background

#F9FDF6

surface

#F2FAEC

border

#CCD3C7

text

#0E1407

muted

#7E837A

Preview Lab

Preview with #4FC21C

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

Preview Lab → · Contrast checker → · Palette generator →