#40B651#40B651

#40B651 is a light, vivid green. Relative luminance 0.351; OKLCH L 68.8% C 0.176 H 145.8°. Best body text is #000000 at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#40B651
RGB	rgb(64, 182, 81)
HSL	hsl(129, 48%, 48%)
HSV	hsv(129, 65%, 71%)
CMYK	cmyk(64.8%, 0%, 55.5%, 28.6%)
CIE-LAB	lab(65.86, -53.82, 41.42)
CIE-LCH	lch(65.86, 67.91, 142.42°)
OKLab	oklab(68.76% -0.1455 0.0988)
OKLCH	oklch(68.76% 0.176 145.8)
XYZ	xyz(20.3262, 35.1379, 13.4941)
Luminance	0.3514 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B651 #B640A5

analogous

#6AB640 #40B651 #40B68C

triadic

#40B651 #5140B6 #B65140

tetradic

#40B651 #406AB6 #B640A5 #B68C40

square

#40B651 #406AB6 #B640A5 #B68C40

split-complementary

#40B651 #8C40B6 #B6406A

monochromatic

#205B29 #30893D #40B651 #69CA77 #96DAA0

Accessibility & contrast

On white

2.62

#40B651 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.03

#40B651 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B651

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B651	#FFFFFF	#000000	##000000
##40B651	1.00	2.62	8.03	8.03
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.03	21.00	1.00	1.00
##000000	8.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A647

Deuteranopia (green-blind)

#AA9C59

Tritanopia (blue-blind)

#1FB29F

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b651;
/* rgb */ color: rgb(64, 182, 81);
/* oklch */ color: oklch(68.8% 0.176 145.8);

Tailwind

colors: {
  custom: {
    50: '#83cd84',
    500: '#40b651',
    950: '#000000',
  },
}

SCSS

$custom: #40b651;
$custom-light: #83cd84;
$custom-dark: #000000;

JSON

{
  "hex": "#40b651",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 81
  },
  "hsl": {
    "h": 128.644,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.68762,
    "c": 0.17587,
    "h": 145.8
  },
  "luminance": 0.3514
}

Semantic roles & 50–950 ramp

primary

#40B651

secondary

#C68CBD

accent

#50C4D8

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C140B

muted

#7D827C

Preview Lab

Preview with #40B651

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

Preview Lab → · Contrast checker → · Palette generator →