#40B678#40B678

#40B678 is a light, vivid green. Relative luminance 0.359; OKLCH L 69.4% C 0.140 H 156.5°. Best body text is #000000 at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#40B678
RGB	rgb(64, 182, 120)
HSL	hsl(148, 48%, 48%)
HSV	hsv(148, 65%, 71%)
CMYK	cmyk(64.8%, 0%, 34.1%, 28.6%)
CIE-LAB	lab(66.44, -47.29, 22.14)
CIE-LCH	lch(66.44, 52.22, 154.92°)
OKLab	oklab(69.44% -0.1284 0.0558)
OKLCH	oklch(69.44% 0.14 156.5)
XYZ	xyz(22.2305, 35.8996, 23.5234)
Luminance	0.3590 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B678 #B6407E

analogous

#43B640 #40B678 #40B6B3

triadic

#40B678 #7840B6 #B67840

tetradic

#40B678 #4043B6 #B6407E #B6B340

square

#40B678 #4043B6 #B6407E #B6B340

split-complementary

#40B678 #B340B6 #B64043

monochromatic

#205B3C #30895A #40B678 #69CA97 #96DAB6

Accessibility & contrast

On white

2.57

#40B678 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.18

#40B678 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B678

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B678	#FFFFFF	#000000	##000000
##40B678	1.00	2.57	8.18	8.18
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.18	21.00	1.00	1.00
##000000	8.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A874

Deuteranopia (green-blind)

#A59D7C

Tritanopia (blue-blind)

#00B4A6

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b678;
/* rgb */ color: rgb(64, 182, 120);
/* oklch */ color: oklch(69.4% 0.140 156.5);

Tailwind

colors: {
  custom: {
    50: '#82cd9f',
    500: '#40b678',
    950: '#000000',
  },
}

SCSS

$custom: #40b678;
$custom-light: #82cd9f;
$custom-dark: #000000;

JSON

{
  "hex": "#40b678",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 120
  },
  "hsl": {
    "h": 148.475,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.69437,
    "c": 0.13998,
    "h": 156.5
  },
  "luminance": 0.35902
}

Semantic roles & 50–950 ramp

primary

#40B678

secondary

#C68CAA

accent

#5097D8

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B678

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

Preview Lab → · Contrast checker → · Palette generator →