#40BB51#40BB51

#40BB51 is a light, vivid green. Relative luminance 0.372; OKLCH L 70.1% C 0.182 H 145.6°. Best body text is #000000 at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#40BB51
RGB	rgb(64, 187, 81)
HSL	hsl(128, 49%, 49%)
HSV	hsv(128, 66%, 73%)
CMYK	cmyk(65.8%, 0%, 56.7%, 26.7%)
CIE-LAB	lab(67.44, -55.64, 43.31)
CIE-LCH	lch(67.44, 70.51, 142.11°)
OKLab	oklab(70.07% -0.1504 0.103)
OKLCH	oklch(70.07% 0.182 145.6)
XYZ	xyz(21.3685, 37.2225, 13.8415)
Luminance	0.3723 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BB51 #BB40AA

analogous

#6DBB40 #40BB51 #40BB8F

triadic

#40BB51 #5140BB #BB5140

tetradic

#40BB51 #406DBB #BB40AA #BB8F40

square

#40BB51 #406DBB #BB40AA #BB8F40

split-complementary

#40BB51 #8F40BB #BB406D

monochromatic

#21602A #308D3D #40BB51 #6CCD79 #99DCA2

Accessibility & contrast

On white

2.49

#40BB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.45

#40BB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BB51

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BB51	#FFFFFF	#000000	##000000
##40BB51	1.00	2.49	8.45	8.45
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.45	21.00	1.00	1.00
##000000	8.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEAB47

Deuteranopia (green-blind)

#AFA059

Tritanopia (blue-blind)

#1CB7A4

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40bb51;
/* rgb */ color: rgb(64, 187, 81);
/* oklch */ color: oklch(70.1% 0.182 145.6);

Tailwind

colors: {
  custom: {
    50: '#84d085',
    500: '#40bb51',
    950: '#000000',
  },
}

SCSS

$custom: #40bb51;
$custom-light: #84d085;
$custom-dark: #000000;

JSON

{
  "hex": "#40bb51",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 81
  },
  "hsl": {
    "h": 128.293,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.70073,
    "c": 0.18225,
    "h": 145.6
  },
  "luminance": 0.37225
}

Semantic roles & 50–950 ramp

primary

#40BB51

secondary

#C88FC0

accent

#4FC6D9

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C140B

muted

#7D827C

Preview Lab

Preview with #40BB51

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

Preview Lab → · Contrast checker → · Palette generator →