#40BB5B#40BB5B

#40BB5B is a light, vivid green. Relative luminance 0.374; OKLCH L 70.2% C 0.174 H 147.5°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#40BB5B
RGB	rgb(64, 187, 91)
HSL	hsl(133, 49%, 49%)
HSV	hsv(133, 66%, 73%)
CMYK	cmyk(65.8%, 0%, 51.3%, 26.7%)
CIE-LAB	lab(67.56, -54.26, 38.62)
CIE-LCH	lch(67.56, 66.60, 144.56°)
OKLab	oklab(70.21% -0.1464 0.0932)
OKLCH	oklch(70.21% 0.174 147.5)
XYZ	xyz(21.7715, 37.3837, 15.9639)
Luminance	0.3739 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BB5B #BB40A0

analogous

#63BB40 #40BB5B #40BB99

triadic

#40BB5B #5B40BB #BB5B40

tetradic

#40BB5B #4063BB #BB40A0 #BB9940

square

#40BB5B #4063BB #BB40A0 #BB9940

split-complementary

#40BB5B #9940BB #BB4063

monochromatic

#21602F #308D45 #40BB5B #6CCD81 #99DCA8

Accessibility & contrast

On white

2.48

#40BB5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#40BB5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BB5B

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BB5B	#FFFFFF	#000000	##000000
##40BB5B	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDAB53

Deuteranopia (green-blind)

#AEA062

Tritanopia (blue-blind)

#15B7A5

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40bb5b;
/* rgb */ color: rgb(64, 187, 91);
/* oklch */ color: oklch(70.2% 0.174 147.5);

Tailwind

colors: {
  custom: {
    50: '#83d08b',
    500: '#40bb5b',
    950: '#000000',
  },
}

SCSS

$custom: #40bb5b;
$custom-light: #83d08b;
$custom-dark: #000000;

JSON

{
  "hex": "#40bb5b",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 91
  },
  "hsl": {
    "h": 133.171,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.70212,
    "c": 0.17357,
    "h": 147.5
  },
  "luminance": 0.37386
}

Semantic roles & 50–950 ramp

primary

#40BB5B

secondary

#C88FBB

accent

#4FBAD9

background

#F8FCF8

surface

#F0F9F0

border

#CBD2CB

text

#0C140C

muted

#7D827D

Preview Lab

Preview with #40BB5B

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

Preview Lab → · Contrast checker → · Palette generator →