#40B577#40B577

#40B577 is a light, vivid green. Relative luminance 0.355; OKLCH L 69.2% C 0.140 H 156.4°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#40B577
RGB	rgb(64, 181, 119)
HSL	hsl(148, 48%, 48%)
HSV	hsv(148, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 34.3%, 29%)
CIE-LAB	lab(66.11, -47.09, 22.22)
CIE-LCH	lch(66.11, 52.07, 154.74°)
OKLab	oklab(69.16% -0.1278 0.056)
OKLCH	oklch(69.16% 0.14 156.4)
XYZ	xyz(21.9660, 35.4673, 23.1374)
Luminance	0.3547 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B577 #B5407E

analogous

#44B540 #40B577 #40B5B1

triadic

#40B577 #7740B5 #B57740

tetradic

#40B577 #4044B5 #B5407E #B5B140

square

#40B577 #4044B5 #B5407E #B5B140

split-complementary

#40B577 #B140B5 #B54044

monochromatic

#205B3C #308859 #40B577 #68CA96 #96DAB6

Accessibility & contrast

On white

2.59

#40B577 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#40B577 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B577

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B577	#FFFFFF	#000000	##000000
##40B577	1.00	2.59	8.09	8.09
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A773

Deuteranopia (green-blind)

#A59C7B

Tritanopia (blue-blind)

#00B3A5

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b577;
/* rgb */ color: rgb(64, 181, 119);
/* oklch */ color: oklch(69.2% 0.140 156.4);

Tailwind

colors: {
  custom: {
    50: '#82cc9e',
    500: '#40b577',
    950: '#000000',
  },
}

SCSS

$custom: #40b577;
$custom-light: #82cc9e;
$custom-dark: #000000;

JSON

{
  "hex": "#40b577",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 119
  },
  "hsl": {
    "h": 148.205,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.69158,
    "c": 0.13953,
    "h": 156.4
  },
  "luminance": 0.3547
}

Semantic roles & 50–950 ramp

primary

#40B577

secondary

#C58BAA

accent

#5098D7

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B577

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

Preview Lab → · Contrast checker → · Palette generator →