#40B555#40B555

#40B555 is a light, vivid green. Relative luminance 0.348; OKLCH L 68.6% C 0.171 H 146.6°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#40B555
RGB	rgb(64, 181, 85)
HSL	hsl(131, 48%, 48%)
HSV	hsv(131, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 53%, 29%)
CIE-LAB	lab(65.59, -52.90, 39.15)
CIE-LCH	lch(65.59, 65.81, 143.50°)
OKLab	oklab(68.55% -0.1429 0.0941)
OKLCH	oklch(68.55% 0.171 146.6)
XYZ	xyz(20.2765, 34.7916, 14.2394)
Luminance	0.3479 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B555 #B540A0

analogous

#66B540 #40B555 #40B58F

triadic

#40B555 #5540B5 #B55540

tetradic

#40B555 #4066B5 #B540A0 #B58F40

square

#40B555 #4066B5 #B540A0 #B58F40

split-complementary

#40B555 #8F40B5 #B54066

monochromatic

#205B2B #308840 #40B555 #68CA7A #96DAA2

Accessibility & contrast

On white

2.64

#40B555 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#40B555 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B555

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B555	#FFFFFF	#000000	##000000
##40B555	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A54C

Deuteranopia (green-blind)

#A99B5C

Tritanopia (blue-blind)

#1EB19F

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40b555;
/* rgb */ color: rgb(64, 181, 85);
/* oklch */ color: oklch(68.6% 0.171 146.6);

Tailwind

colors: {
  custom: {
    50: '#82cc87',
    500: '#40b555',
    950: '#000000',
  },
}

SCSS

$custom: #40b555;
$custom-light: #82cc87;
$custom-dark: #000000;

JSON

{
  "hex": "#40b555",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 85
  },
  "hsl": {
    "h": 130.769,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.68555,
    "c": 0.17108,
    "h": 146.6
  },
  "luminance": 0.34794
}

Semantic roles & 50–950 ramp

primary

#40B555

secondary

#C58BBB

accent

#50BFD7

background

#F8FCF8

surface

#F0F9F0

border

#CBD2CB

text

#0C130B

muted

#7D827C

Preview Lab

Preview with #40B555

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

Preview Lab → · Contrast checker → · Palette generator →