#40B178#40B178

#40B178 is a light, vivid green. Relative luminance 0.339; OKLCH L 68.1% C 0.133 H 157.7°. Best body text is #000000 at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#40B178
RGB	rgb(64, 177, 120)
HSL	hsl(150, 47%, 47%)
HSV	hsv(150, 64%, 69%)
CMYK	cmyk(63.8%, 0%, 32.2%, 30.6%)
CIE-LAB	lab(64.87, -45.25, 20.00)
CIE-LCH	lch(64.87, 49.47, 156.15°)
OKLab	oklab(68.15% -0.1231 0.0506)
OKLCH	oklch(68.15% 0.133 157.7)
XYZ	xyz(21.2247, 33.8881, 23.1882)
Luminance	0.3389 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B178 #B14079

analogous

#40B140 #40B178 #40B1B1

triadic

#40B178 #7840B1 #B17840

tetradic

#40B178 #4040B1 #B14079 #B1B140

square

#40B178 #4040B1 #B14079 #B1B140

split-complementary

#40B178 #B140B1 #B14040

monochromatic

#1F573B #30845A #40B178 #66C897 #93D8B5

Accessibility & contrast

On white

2.70

#40B178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.78

#40B178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B178

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B178	#FFFFFF	#000000	##000000
##40B178	1.00	2.70	7.78	7.78
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.78	21.00	1.00	1.00
##000000	7.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0A474

Deuteranopia (green-blind)

#A1997C

Tritanopia (blue-blind)

#00B0A2

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40b178;
/* rgb */ color: rgb(64, 177, 120);
/* oklch */ color: oklch(68.1% 0.133 157.7);

Tailwind

colors: {
  custom: {
    50: '#81c99f',
    500: '#40b178',
    950: '#000000',
  },
}

SCSS

$custom: #40b178;
$custom-light: #81c99f;
$custom-dark: #000000;

JSON

{
  "hex": "#40b178",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 120
  },
  "hsl": {
    "h": 149.735,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.68149,
    "c": 0.13311,
    "h": 157.7
  },
  "luminance": 0.3389
}

Semantic roles & 50–950 ramp

primary

#40B178

secondary

#C389A7

accent

#5194D7

background

#F8FCF9

surface

#EFF8F2

border

#CAD1CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B178

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

Preview Lab → · Contrast checker → · Palette generator →