#40B779#40B779

#40B779 is a light, vivid green. Relative luminance 0.363; OKLCH L 69.7% C 0.140 H 156.7°. Best body text is #000000 at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#40B779
RGB	rgb(64, 183, 121)
HSL	hsl(149, 48%, 48%)
HSV	hsv(149, 65%, 72%)
CMYK	cmyk(65%, 0%, 33.9%, 28.2%)
CIE-LAB	lab(66.78, -47.50, 22.05)
CIE-LCH	lch(66.78, 52.37, 155.10°)
OKLab	oklab(69.72% -0.129 0.0556)
OKLCH	oklch(69.72% 0.14 156.7)
XYZ	xyz(22.4970, 36.3351, 23.9132)
Luminance	0.3634 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B779 #B7407E

analogous

#43B740 #40B779 #40B7B4

triadic

#40B779 #7940B7 #B77940

tetradic

#40B779 #4043B7 #B7407E #B7B440

square

#40B779 #4043B7 #B7407E #B7B440

split-complementary

#40B779 #B440B7 #B74043

monochromatic

#205C3D #308A5B #40B779 #69CB98 #97DBB7

Accessibility & contrast

On white

2.54

#40B779 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.27

#40B779 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B779

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B779	#FFFFFF	#000000	##000000
##40B779	1.00	2.54	8.27	8.27
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.27	21.00	1.00	1.00
##000000	8.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A975

Deuteranopia (green-blind)

#A69E7D

Tritanopia (blue-blind)

#00B6A7

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b779;
/* rgb */ color: rgb(64, 183, 121);
/* oklch */ color: oklch(69.7% 0.140 156.7);

Tailwind

colors: {
  custom: {
    50: '#82cda0',
    500: '#40b779',
    950: '#000000',
  },
}

SCSS

$custom: #40b779;
$custom-light: #82cda0;
$custom-dark: #000000;

JSON

{
  "hex": "#40b779",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 121
  },
  "hsl": {
    "h": 148.739,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.69716,
    "c": 0.14044,
    "h": 156.7
  },
  "luminance": 0.36337
}

Semantic roles & 50–950 ramp

primary

#40B779

secondary

#C68DAB

accent

#5097D8

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0C140E

muted

#7D827E

Preview Lab

Preview with #40B779

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

Preview Lab → · Contrast checker → · Palette generator →