#4ECC40#4ECC40

#4ECC40 is a light, highly saturated green. Relative luminance 0.452; OKLCH L 74.7% C 0.210 H 141.7°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#4ECC40
RGB	rgb(78, 204, 64)
HSL	hsl(114, 58%, 53%)
HSV	hsv(114, 69%, 80%)
CMYK	cmyk(61.8%, 0%, 68.6%, 20%)
CIE-LAB	lab(73.01, -60.50, 57.00)
CIE-LCH	lch(73.01, 83.12, 136.71°)
OKLab	oklab(74.72% -0.165 0.1304)
OKLCH	oklch(74.72% 0.21 141.7)
XYZ	xyz(25.6588, 45.1731, 12.2166)
Luminance	0.4518 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4ECC40 #BE40CC

analogous

#94CC40 #4ECC40 #40CC78

triadic

#4ECC40 #404ECC #CC404E

tetradic

#4ECC40 #4094CC #BE40CC #CC7840

square

#4ECC40 #4094CC #BE40CC #CC7840

split-complementary

#4ECC40 #7840CC #CC4094

monochromatic

#27731F #38A32C #4ECC40 #7BD970 #A8E6A1

Accessibility & contrast

On white

2.09

#4ECC40 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.04

#4ECC40 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4ECC40

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4ECC40	#FFFFFF	#000000	##000000
##4ECC40	1.00	2.09	10.04	10.04
#FFFFFF	2.09	1.00	21.00	21.00
#000000	10.04	21.00	1.00	1.00
##000000	10.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA2B

Deuteranopia (green-blind)

#C1AF4D

Tritanopia (blue-blind)

#38C6B0

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #4ecc40;
/* rgb */ color: rgb(78, 204, 64);
/* oklch */ color: oklch(74.7% 0.210 141.7);

Tailwind

colors: {
  custom: {
    50: '#8edd7c',
    500: '#4ecc40',
    950: '#000000',
  },
}

SCSS

$custom: #4ecc40;
$custom-light: #8edd7c;
$custom-dark: #000000;

JSON

{
  "hex": "#4ecc40",
  "rgb": {
    "r": 78,
    "g": 204,
    "b": 64
  },
  "hsl": {
    "h": 114,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.74725,
    "c": 0.21036,
    "h": 141.7
  },
  "luminance": 0.45176
}

Semantic roles & 50–950 ramp

primary

#4ECC40

secondary

#CC95D2

accent

#47E1D2

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E150A

muted

#7E837C

Preview Lab

Preview with #4ECC40

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

Preview Lab → · Contrast checker → · Palette generator →