#4ECC39#4ECC39

#4ECC39 is a light, highly saturated green. Relative luminance 0.451; OKLCH L 74.7% C 0.215 H 141.1°. Best body text is #000000 at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#4ECC39
RGB	rgb(78, 204, 57)
HSL	hsl(111, 59%, 51%)
HSV	hsv(111, 72%, 80%)
CMYK	cmyk(61.8%, 0%, 72.1%, 20%)
CIE-LAB	lab(72.96, -61.07, 59.57)
CIE-LCH	lch(72.96, 85.31, 135.71°)
OKLab	oklab(74.67% -0.167 0.1349)
OKLCH	oklch(74.67% 0.215 141.1)
XYZ	xyz(25.4720, 45.0984, 11.2326)
Luminance	0.4510 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4ECC39 #B739CC

analogous

#97CC39 #4ECC39 #39CC6D

triadic

#4ECC39 #394ECC #CC394E

tetradic

#4ECC39 #3997CC #B739CC #CC6D39

square

#4ECC39 #3997CC #B739CC #CC6D39

split-complementary

#4ECC39 #6D39CC #CC3997

monochromatic

#286E1C #3A9F29 #4ECC39 #7AD96A #A5E59A

Accessibility & contrast

On white

2.10

#4ECC39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.02

#4ECC39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4ECC39

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4ECC39	#FFFFFF	#000000	##000000
##4ECC39	1.00	2.10	10.02	10.02
#FFFFFF	2.10	1.00	21.00	21.00
#000000	10.02	21.00	1.00	1.00
##000000	10.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1B91F

Deuteranopia (green-blind)

#C2AF48

Tritanopia (blue-blind)

#3AC6AF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #4ecc39;
/* rgb */ color: rgb(78, 204, 57);
/* oklch */ color: oklch(74.7% 0.215 141.1);

Tailwind

colors: {
  custom: {
    50: '#8edd78',
    500: '#4ecc39',
    950: '#000000',
  },
}

SCSS

$custom: #4ecc39;
$custom-light: #8edd78;
$custom-dark: #000000;

JSON

{
  "hex": "#4ecc39",
  "rgb": {
    "r": 78,
    "g": 204,
    "b": 57
  },
  "hsl": {
    "h": 111.429,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.74669,
    "c": 0.21469,
    "h": 141.1
  },
  "luminance": 0.45101
}

Semantic roles & 50–950 ramp

primary

#4ECC39

secondary

#C890D1

accent

#46E2CC

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #4ECC39

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

Preview Lab → · Contrast checker → · Palette generator →