#40B840#40B840

#40B840 is a light, vivid green. Relative luminance 0.357; OKLCH L 69.1% C 0.192 H 143.1°. Best body text is #000000 at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#40B840
RGB	rgb(64, 184, 64)
HSL	hsl(120, 48%, 49%)
HSV	hsv(120, 65%, 72%)
CMYK	cmyk(65.2%, 0%, 65.2%, 27.8%)
CIE-LAB	lab(66.32, -56.55, 49.68)
CIE-LCH	lch(66.32, 75.27, 138.70°)
OKLab	oklab(69.09% -0.1536 0.1151)
OKLCH	oklch(69.09% 0.192 143.1)
XYZ	xyz(20.1791, 35.7391, 10.6844)
Luminance	0.3574 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B840 #B840B8

analogous

#7CB840 #40B840 #40B87C

triadic

#40B840 #4040B8 #B84040

tetradic

#40B840 #407CB8 #B840B8 #B87C40

square

#40B840 #407CB8 #B840B8 #B87C40

split-complementary

#40B840 #7C40B8 #B8407C

monochromatic

#205D20 #308B30 #40B840 #6ACB6A #97DB97

Accessibility & contrast

On white

2.58

#40B840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.15

#40B840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B840

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B840	#FFFFFF	#000000	##000000
##40B840	1.00	2.58	8.15	8.15
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.15	21.00	1.00	1.00
##000000	8.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA731

Deuteranopia (green-blind)

#AD9D4B

Tritanopia (blue-blind)

#25B39F

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b840;
/* rgb */ color: rgb(64, 184, 64);
/* oklch */ color: oklch(69.1% 0.192 143.1);

Tailwind

colors: {
  custom: {
    50: '#84ce7a',
    500: '#40b840',
    950: '#000000',
  },
}

SCSS

$custom: #40b840;
$custom-light: #84ce7a;
$custom-dark: #000000;

JSON

{
  "hex": "#40b840",
  "rgb": {
    "r": 64,
    "g": 184,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.6909,
    "c": 0.19192,
    "h": 143.1
  },
  "luminance": 0.35741
}

Semantic roles & 50–950 ramp

primary

#40B840

secondary

#C78DC7

accent

#50D8D8

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #40B840

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

Preview Lab → · Contrast checker → · Palette generator →