#40B951#40B951

#40B951 is a light, vivid green. Relative luminance 0.364; OKLCH L 69.5% C 0.180 H 145.7°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#40B951
RGB	rgb(64, 185, 81)
HSL	hsl(128, 49%, 49%)
HSV	hsv(128, 65%, 73%)
CMYK	cmyk(65.4%, 0%, 56.2%, 27.5%)
CIE-LAB	lab(66.81, -54.92, 42.55)
CIE-LCH	lch(66.81, 69.47, 142.23°)
OKLab	oklab(69.55% -0.1484 0.1013)
OKLCH	oklch(69.55% 0.18 145.7)
XYZ	xyz(20.9471, 36.3798, 13.7011)
Luminance	0.3638 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B951 #B940A8

analogous

#6CB940 #40B951 #40B98E

triadic

#40B951 #5140B9 #B95140

tetradic

#40B951 #406CB9 #B940A8 #B98E40

square

#40B951 #406CB9 #B940A8 #B98E40

split-complementary

#40B951 #8E40B9 #B9406C

monochromatic

#215E29 #308C3D #40B951 #6BCC78 #98DBA1

Accessibility & contrast

On white

2.54

#40B951 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#40B951 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B951

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B951	#FFFFFF	#000000	##000000
##40B951	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA947

Deuteranopia (green-blind)

#AD9F59

Tritanopia (blue-blind)

#1DB5A2

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b951;
/* rgb */ color: rgb(64, 185, 81);
/* oklch */ color: oklch(69.5% 0.180 145.7);

Tailwind

colors: {
  custom: {
    50: '#83cf85',
    500: '#40b951',
    950: '#000000',
  },
}

SCSS

$custom: #40b951;
$custom-light: #83cf85;
$custom-dark: #000000;

JSON

{
  "hex": "#40b951",
  "rgb": {
    "r": 64,
    "g": 185,
    "b": 81
  },
  "hsl": {
    "h": 128.43,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.69549,
    "c": 0.17972,
    "h": 145.7
  },
  "luminance": 0.36382
}

Semantic roles & 50–950 ramp

primary

#40B951

secondary

#C78EBF

accent

#50C5D8

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C140B

muted

#7D827C

Preview Lab

Preview with #40B951

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

Preview Lab → · Contrast checker → · Palette generator →