#4ECD51#4ECD51

#4ECD51 is a light, vivid green. Relative luminance 0.459; OKLCH L 75.2% C 0.199 H 143.6°. Best body text is #000000 at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#4ECD51
RGB	rgb(78, 205, 81)
HSL	hsl(121, 56%, 55%)
HSV	hsv(121, 62%, 80%)
CMYK	cmyk(62%, 0%, 60.5%, 19.6%)
CIE-LAB	lab(73.46, -59.15, 50.40)
CIE-LCH	lch(73.46, 77.71, 139.57°)
OKLab	oklab(75.15% -0.1605 0.1182)
OKLCH	oklch(75.15% 0.199 143.6)
XYZ	xyz(26.4569, 45.8739, 15.2433)
Luminance	0.4588 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4ECD51 #CD4ECA

analogous

#8BCD4E #4ECD51 #4ECD90

triadic

#4ECD51 #514ECD #CD514E

tetradic

#4ECD51 #4E8BCD #CD4ECA #CD904E

square

#4ECD51 #4E8BCD #CD4ECA #CD904E

split-complementary

#4ECD51 #904ECD #CD4E8B

monochromatic

#237D25 #31AD34 #4ECD51 #7EDA80 #ADE8AF

Accessibility & contrast

On white

2.06

#4ECD51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.18

#4ECD51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4ECD51

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4ECD51	#FFFFFF	#000000	##000000
##4ECD51	1.00	2.06	10.18	10.18
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.18	21.00	1.00	1.00
##000000	10.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BB43

Deuteranopia (green-blind)

#C1B05B

Tritanopia (blue-blind)

#34C8B2

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #4ecd51;
/* rgb */ color: rgb(78, 205, 81);
/* oklch */ color: oklch(75.2% 0.199 143.6);

Tailwind

colors: {
  custom: {
    50: '#8ddd86',
    500: '#4ecd51',
    950: '#000000',
  },
}

SCSS

$custom: #4ecd51;
$custom-light: #8ddd86;
$custom-dark: #000000;

JSON

{
  "hex": "#4ecd51",
  "rgb": {
    "r": 78,
    "g": 205,
    "b": 81
  },
  "hsl": {
    "h": 121.417,
    "s": 55.947,
    "l": 55.49
  },
  "oklch": {
    "l": 0.75151,
    "c": 0.19938,
    "h": 143.6
  },
  "luminance": 0.45876
}

Semantic roles & 50–950 ramp

primary

#4ECD51

secondary

#D6A1D5

accent

#49DCDF

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0D150B

muted

#7E837C

Preview Lab

Preview with #4ECD51

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

Preview Lab → · Contrast checker → · Palette generator →