#40B478#40B478

#40B478 is a light, vivid green. Relative luminance 0.351; OKLCH L 68.9% C 0.137 H 157.0°. Best body text is #000000 at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#40B478
RGB	rgb(64, 180, 120)
HSL	hsl(149, 48%, 48%)
HSV	hsv(149, 64%, 71%)
CMYK	cmyk(64.4%, 0%, 33.3%, 29.4%)
CIE-LAB	lab(65.82, -46.48, 21.28)
CIE-LCH	lch(65.82, 51.12, 155.40°)
OKLab	oklab(68.92% -0.1263 0.0537)
OKLCH	oklch(68.92% 0.137 157)
XYZ	xyz(21.8238, 35.0863, 23.3879)
Luminance	0.3509 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B478 #B4407C

analogous

#42B440 #40B478 #40B4B2

triadic

#40B478 #7840B4 #B47840

tetradic

#40B478 #4042B4 #B4407C #B4B240

square

#40B478 #4042B4 #B4407C #B4B240

split-complementary

#40B478 #B240B4 #B44042

monochromatic

#205A3C #30875A #40B478 #68C997 #95D9B6

Accessibility & contrast

On white

2.62

#40B478 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.02

#40B478 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B478

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B478	#FFFFFF	#000000	##000000
##40B478	1.00	2.62	8.02	8.02
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.02	21.00	1.00	1.00
##000000	8.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A674

Deuteranopia (green-blind)

#A49C7C

Tritanopia (blue-blind)

#00B3A4

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b478;
/* rgb */ color: rgb(64, 180, 120);
/* oklch */ color: oklch(68.9% 0.137 157.0);

Tailwind

colors: {
  custom: {
    50: '#81cb9f',
    500: '#40b478',
    950: '#000000',
  },
}

SCSS

$custom: #40b478;
$custom-light: #81cb9f;
$custom-dark: #000000;

JSON

{
  "hex": "#40b478",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 120
  },
  "hsl": {
    "h": 148.966,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.68922,
    "c": 0.13725,
    "h": 157
  },
  "luminance": 0.35089
}

Semantic roles & 50–950 ramp

primary

#40B478

secondary

#C58BA9

accent

#5196D7

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B478

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

Preview Lab → · Contrast checker → · Palette generator →