#4ECB51#4ECB51

#4ECB51 is a light, vivid green. Relative luminance 0.449; OKLCH L 74.6% C 0.197 H 143.7°. Best body text is #000000 at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#4ECB51
RGB	rgb(78, 203, 81)
HSL	hsl(121, 55%, 55%)
HSV	hsv(121, 62%, 80%)
CMYK	cmyk(61.6%, 0%, 60.1%, 20.4%)
CIE-LAB	lab(72.84, -58.44, 49.69)
CIE-LCH	lch(72.84, 76.71, 139.63°)
OKLab	oklab(74.64% -0.1586 0.1167)
OKLCH	oklch(74.64% 0.197 143.7)
XYZ	xyz(25.9815, 44.9231, 15.0848)
Luminance	0.4493 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4ECB51 #CB4EC8

analogous

#89CB4E #4ECB51 #4ECB8F

triadic

#4ECB51 #514ECB #CB514E

tetradic

#4ECB51 #4E89CB #CB4EC8 #CB8F4E

square

#4ECB51 #4E89CB #CB4EC8 #CB8F4E

split-complementary

#4ECB51 #8F4ECB #CB4E89

monochromatic

#247B26 #32AA35 #4ECB51 #7DD980 #ADE7AE

Accessibility & contrast

On white

2.10

#4ECB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.99

#4ECB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4ECB51

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4ECB51	#FFFFFF	#000000	##000000
##4ECB51	1.00	2.10	9.99	9.99
#FFFFFF	2.10	1.00	21.00	21.00
#000000	9.99	21.00	1.00	1.00
##000000	9.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFB944

Deuteranopia (green-blind)

#BFAF5B

Tritanopia (blue-blind)

#35C6B1

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #4ecb51;
/* rgb */ color: rgb(78, 203, 81);
/* oklch */ color: oklch(74.6% 0.197 143.7);

Tailwind

colors: {
  custom: {
    50: '#8ddc86',
    500: '#4ecb51',
    950: '#000000',
  },
}

SCSS

$custom: #4ecb51;
$custom-light: #8ddc86;
$custom-dark: #000000;

JSON

{
  "hex": "#4ecb51",
  "rgb": {
    "r": 78,
    "g": 203,
    "b": 81
  },
  "hsl": {
    "h": 121.44,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.74637,
    "c": 0.19691,
    "h": 143.7
  },
  "luminance": 0.44926
}

Semantic roles & 50–950 ramp

primary

#4ECB51

secondary

#D5A0D3

accent

#4ADADE

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0D150B

muted

#7E837C

Preview Lab

Preview with #4ECB51

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

Preview Lab → · Contrast checker → · Palette generator →