#40BC51#40BC51

#40BC51 is a light, vivid green. Relative luminance 0.377; OKLCH L 70.3% C 0.184 H 145.6°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#40BC51
RGB	rgb(64, 188, 81)
HSL	hsl(128, 49%, 49%)
HSV	hsv(128, 66%, 74%)
CMYK	cmyk(66%, 0%, 56.9%, 26.3%)
CIE-LAB	lab(67.76, -56.00, 43.68)
CIE-LCH	lch(67.76, 71.02, 142.05°)
OKLab	oklab(70.34% -0.1514 0.1038)
OKLCH	oklch(70.34% 0.184 145.6)
XYZ	xyz(21.5813, 37.6483, 13.9125)
Luminance	0.3765 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BC51 #BC40AB

analogous

#6DBC40 #40BC51 #40BC8F

triadic

#40BC51 #5140BC #BC5140

tetradic

#40BC51 #406DBC #BC40AB #BC8F40

square

#40BC51 #406DBC #BC40AB #BC8F40

split-complementary

#40BC51 #8F40BC #BC406D

monochromatic

#21612A #308E3D #40BC51 #6CCD79 #9ADDA3

Accessibility & contrast

On white

2.46

#40BC51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#40BC51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BC51

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BC51	#FFFFFF	#000000	##000000
##40BC51	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAB47

Deuteranopia (green-blind)

#B0A159

Tritanopia (blue-blind)

#1BB7A4

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40bc51;
/* rgb */ color: rgb(64, 188, 81);
/* oklch */ color: oklch(70.3% 0.184 145.6);

Tailwind

colors: {
  custom: {
    50: '#84d185',
    500: '#40bc51',
    950: '#000000',
  },
}

SCSS

$custom: #40bc51;
$custom-light: #84d185;
$custom-dark: #000000;

JSON

{
  "hex": "#40bc51",
  "rgb": {
    "r": 64,
    "g": 188,
    "b": 81
  },
  "hsl": {
    "h": 128.226,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.70335,
    "c": 0.18352,
    "h": 145.6
  },
  "luminance": 0.37651
}

Semantic roles & 50–950 ramp

primary

#40BC51

secondary

#C98FC1

accent

#4FC6D9

background

#F8FDF8

surface

#F0FAEF

border

#CBD3CA

text

#0C140B

muted

#7D837C

Preview Lab

Preview with #40BC51

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

Preview Lab → · Contrast checker → · Palette generator →