#40B666#40B666

#40B666 is a light, vivid green. Relative luminance 0.355; OKLCH L 69.1% C 0.157 H 150.6°. Best body text is #000000 at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#40B666
RGB	rgb(64, 182, 102)
HSL	hsl(139, 48%, 48%)
HSV	hsv(139, 65%, 71%)
CMYK	cmyk(64.8%, 0%, 44%, 28.6%)
CIE-LAB	lab(66.14, -50.63, 31.24)
CIE-LCH	lch(66.14, 59.50, 148.32°)
OKLab	oklab(69.09% -0.1366 0.077)
OKLCH	oklch(69.09% 0.157 150.6)
XYZ	xyz(21.2389, 35.5030, 18.3013)
Luminance	0.3550 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B666 #B64090

analogous

#55B640 #40B666 #40B6A1

triadic

#40B666 #6640B6 #B66640

tetradic

#40B666 #4055B6 #B64090 #B6A140

square

#40B666 #4055B6 #B64090 #B6A140

split-complementary

#40B666 #A140B6 #B64055

monochromatic

#205B33 #30894D #40B666 #69CA88 #96DAAC

Accessibility & contrast

On white

2.59

#40B666 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.10

#40B666 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B666

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B666	#FFFFFF	#000000	##000000
##40B666	1.00	2.59	8.10	8.10
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.10	21.00	1.00	1.00
##000000	8.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A760

Deuteranopia (green-blind)

#A89D6B

Tritanopia (blue-blind)

#0FB3A3

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b666;
/* rgb */ color: rgb(64, 182, 102);
/* oklch */ color: oklch(69.1% 0.157 150.6);

Tailwind

colors: {
  custom: {
    50: '#82cd92',
    500: '#40b666',
    950: '#000000',
  },
}

SCSS

$custom: #40b666;
$custom-light: #82cd92;
$custom-dark: #000000;

JSON

{
  "hex": "#40b666",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 102
  },
  "hsl": {
    "h": 139.322,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.69087,
    "c": 0.15683,
    "h": 150.6
  },
  "luminance": 0.35505
}

Semantic roles & 50–950 ramp

primary

#40B666

secondary

#C68CB3

accent

#50ACD8

background

#F8FCF9

surface

#F0F9F1

border

#CBD2CB

text

#0C130D

muted

#7D827E

Preview Lab

Preview with #40B666

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

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