#40B561#40B561

#40B561 is a light, vivid green. Relative luminance 0.350; OKLCH L 68.7% C 0.160 H 149.4°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#40B561
RGB	rgb(64, 181, 97)
HSL	hsl(137, 48%, 48%)
HSV	hsv(137, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 46.4%, 29%)
CIE-LAB	lab(65.75, -51.08, 33.32)
CIE-LCH	lch(65.75, 60.99, 146.88°)
OKLab	oklab(68.74% -0.1378 0.0816)
OKLCH	oklch(68.74% 0.16 149.4)
XYZ	xyz(20.7943, 34.9987, 16.9665)
Luminance	0.3500 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B561 #B54094

analogous

#59B540 #40B561 #40B59B

triadic

#40B561 #6140B5 #B56140

tetradic

#40B561 #4059B5 #B54094 #B59B40

square

#40B561 #4059B5 #B54094 #B59B40

split-complementary

#40B561 #9B40B5 #B54059

monochromatic

#205B31 #308849 #40B561 #68CA84 #96DAA9

Accessibility & contrast

On white

2.62

#40B561 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#40B561 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B561

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B561	#FFFFFF	#000000	##000000
##40B561	1.00	2.62	8.00	8.00
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A65A

Deuteranopia (green-blind)

#A89C67

Tritanopia (blue-blind)

#15B2A1

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b561;
/* rgb */ color: rgb(64, 181, 97);
/* oklch */ color: oklch(68.7% 0.160 149.4);

Tailwind

colors: {
  custom: {
    50: '#82cc8f',
    500: '#40b561',
    950: '#000000',
  },
}

SCSS

$custom: #40b561;
$custom-light: #82cc8f;
$custom-dark: #000000;

JSON

{
  "hex": "#40b561",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 97
  },
  "hsl": {
    "h": 136.923,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.6874,
    "c": 0.16014,
    "h": 149.4
  },
  "luminance": 0.35001
}

Semantic roles & 50–950 ramp

primary

#40B561

secondary

#C58BB5

accent

#50B1D7

background

#F8FCF8

surface

#F0F9F0

border

#CBD2CB

text

#0C130C

muted

#7D827D

Preview Lab

Preview with #40B561

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

Preview Lab → · Contrast checker → · Palette generator →