#40B657#40B657

#40B657 is a light, vivid green. Relative luminance 0.352; OKLCH L 68.8% C 0.171 H 147.0°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#40B657
RGB	rgb(64, 182, 87)
HSL	hsl(132, 48%, 48%)
HSV	hsv(132, 65%, 71%)
CMYK	cmyk(64.8%, 0%, 52.2%, 28.6%)
CIE-LAB	lab(65.93, -52.99, 38.58)
CIE-LCH	lch(65.93, 65.55, 143.94°)
OKLab	oklab(68.85% -0.1431 0.0929)
OKLCH	oklch(68.85% 0.171 147)
XYZ	xyz(20.5612, 35.2319, 14.7318)
Luminance	0.3523 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B657 #B6409F

analogous

#64B640 #40B657 #40B692

triadic

#40B657 #5740B6 #B65740

tetradic

#40B657 #4064B6 #B6409F #B69240

square

#40B657 #4064B6 #B6409F #B69240

split-complementary

#40B657 #9240B6 #B64064

monochromatic

#205B2C #308941 #40B657 #69CA7C #96DAA3

Accessibility & contrast

On white

2.61

#40B657 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#40B657 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B657

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B657	#FFFFFF	#000000	##000000
##40B657	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A64F

Deuteranopia (green-blind)

#AA9C5E

Tritanopia (blue-blind)

#1CB2A0

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b657;
/* rgb */ color: rgb(64, 182, 87);
/* oklch */ color: oklch(68.8% 0.171 147.0);

Tailwind

colors: {
  custom: {
    50: '#82cd88',
    500: '#40b657',
    950: '#000000',
  },
}

SCSS

$custom: #40b657;
$custom-light: #82cd88;
$custom-dark: #000000;

JSON

{
  "hex": "#40b657",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 87
  },
  "hsl": {
    "h": 131.695,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.68846,
    "c": 0.17061,
    "h": 147
  },
  "luminance": 0.35234
}

Semantic roles & 50–950 ramp

primary

#40B657

secondary

#C68CBB

accent

#50BDD8

background

#F8FCF8

surface

#F0F9F0

border

#CBD2CB

text

#0C140B

muted

#7D827C

Preview Lab

Preview with #40B657

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

Preview Lab → · Contrast checker → · Palette generator →