#4EC21B#4EC21B

#4EC21B is a light, highly saturated green. Relative luminance 0.403; OKLCH L 71.9% C 0.217 H 138.9°. Best body text is #000000 at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#4EC21B
RGB	rgb(78, 194, 27)
HSL	hsl(102, 76%, 43%)
HSV	hsv(102, 86%, 76%)
CMYK	cmyk(59.8%, 0%, 86.1%, 23.9%)
CIE-LAB	lab(69.67, -59.36, 65.29)
CIE-LCH	lch(69.67, 88.24, 132.28°)
OKLab	oklab(71.9% -0.1638 0.1429)
OKLCH	oklch(71.9% 0.217 138.9)
XYZ	xyz(22.6306, 40.2804, 7.6190)
Luminance	0.4028 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4EC21B #8F1BC2

analogous

#A1C21B #4EC21B #1BC23C

triadic

#4EC21B #1B4EC2 #C21B4E

tetradic

#4EC21B #1BA1C2 #8F1BC2 #C23C1B

square

#4EC21B #1BA1C2 #8F1BC2 #C23C1B

split-complementary

#4EC21B #3C1BC2 #C21BA1

monochromatic

#23570C #388C14 #4EC21B #6CE337 #93EB6D

Accessibility & contrast

On white

2.32

#4EC21B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.06

#4EC21B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4EC21B

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4EC21B	#FFFFFF	#000000	##000000
##4EC21B	1.00	2.32	9.06	9.06
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.06	21.00	1.00	1.00
##000000	9.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B000

Deuteranopia (green-blind)

#BAA733

Tritanopia (blue-blind)

#41BBA5

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #4ec21b;
/* rgb */ color: rgb(78, 194, 27);
/* oklch */ color: oklch(71.9% 0.217 138.9);

Tailwind

colors: {
  custom: {
    50: '#8ed56a',
    500: '#4ec21b',
    950: '#000000',
  },
}

SCSS

$custom: #4ec21b;
$custom-light: #8ed56a;
$custom-dark: #000000;

JSON

{
  "hex": "#4ec21b",
  "rgb": {
    "r": 78,
    "g": 194,
    "b": 27
  },
  "hsl": {
    "h": 101.677,
    "s": 75.566,
    "l": 43.333
  },
  "oklch": {
    "l": 0.71902,
    "c": 0.21738,
    "h": 138.9
  },
  "luminance": 0.40282
}

Semantic roles & 50–950 ramp

primary

#4EC21B

secondary

#B168D1

accent

#36F2B9

background

#F9FDF6

surface

#F2FAEC

border

#CCD3C7

text

#0E1407

muted

#7E837A

Preview Lab

Preview with #4EC21B

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

Preview Lab → · Contrast checker → · Palette generator →