#40B573#40B573

#40B573 is a light, vivid green. Relative luminance 0.354; OKLCH L 69.1% C 0.143 H 154.9°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#40B573
RGB	rgb(64, 181, 115)
HSL	hsl(146, 48%, 48%)
HSV	hsv(146, 65%, 71%)
CMYK	cmyk(64.6%, 0%, 36.5%, 29%)
CIE-LAB	lab(66.04, -47.88, 24.27)
CIE-LCH	lch(66.04, 53.67, 153.12°)
OKLab	oklab(69.08% -0.1297 0.0608)
OKLCH	oklch(69.08% 0.143 154.9)
XYZ	xyz(21.7309, 35.3733, 21.8988)
Luminance	0.3538 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B573 #B54082

analogous

#47B540 #40B573 #40B5AD

triadic

#40B573 #7340B5 #B57340

tetradic

#40B573 #4047B5 #B54082 #B5AD40

square

#40B573 #4047B5 #B54082 #B5AD40

split-complementary

#40B573 #AD40B5 #B54047

monochromatic

#205B3A #308856 #40B573 #68CA93 #96DAB3

Accessibility & contrast

On white

2.60

#40B573 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#40B573 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B573

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B573	#FFFFFF	#000000	##000000
##40B573	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A76F

Deuteranopia (green-blind)

#A59C77

Tritanopia (blue-blind)

#00B3A4

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b573;
/* rgb */ color: rgb(64, 181, 115);
/* oklch */ color: oklch(69.1% 0.143 154.9);

Tailwind

colors: {
  custom: {
    50: '#82cc9b',
    500: '#40b573',
    950: '#000000',
  },
}

SCSS

$custom: #40b573;
$custom-light: #82cc9b;
$custom-dark: #000000;

JSON

{
  "hex": "#40b573",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 115
  },
  "hsl": {
    "h": 146.154,
    "s": 47.755,
    "l": 48.039
  },
  "oklch": {
    "l": 0.69075,
    "c": 0.14324,
    "h": 154.9
  },
  "luminance": 0.35376
}

Semantic roles & 50–950 ramp

primary

#40B573

secondary

#C58BAC

accent

#509DD7

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B573

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

Preview Lab → · Contrast checker → · Palette generator →