#40B751#40B751

#40B751 is a light, vivid green. Relative luminance 0.356; OKLCH L 69.0% C 0.177 H 145.8°. Best body text is #000000 at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#40B751
RGB	rgb(64, 183, 81)
HSL	hsl(129, 48%, 48%)
HSV	hsv(129, 65%, 72%)
CMYK	cmyk(65%, 0%, 55.7%, 28.2%)
CIE-LAB	lab(66.17, -54.19, 41.80)
CIE-LCH	lch(66.17, 68.44, 142.36°)
OKLab	oklab(69.02% -0.1465 0.0997)
OKLCH	oklch(69.02% 0.177 145.8)
XYZ	xyz(20.5317, 35.5489, 13.5626)
Luminance	0.3555 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B751 #B740A6

analogous

#6BB740 #40B751 #40B78C

triadic

#40B751 #5140B7 #B75140

tetradic

#40B751 #406BB7 #B740A6 #B78C40

square

#40B751 #406BB7 #B740A6 #B78C40

split-complementary

#40B751 #8C40B7 #B7406B

monochromatic

#205C29 #308A3D #40B751 #69CB77 #97DBA1

Accessibility & contrast

On white

2.59

#40B751 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.11

#40B751 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B751

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B751	#FFFFFF	#000000	##000000
##40B751	1.00	2.59	8.11	8.11
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.11	21.00	1.00	1.00
##000000	8.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA747

Deuteranopia (green-blind)

#AB9D59

Tritanopia (blue-blind)

#1EB3A0

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b751;
/* rgb */ color: rgb(64, 183, 81);
/* oklch */ color: oklch(69.0% 0.177 145.8);

Tailwind

colors: {
  custom: {
    50: '#83ce84',
    500: '#40b751',
    950: '#000000',
  },
}

SCSS

$custom: #40b751;
$custom-light: #83ce84;
$custom-dark: #000000;

JSON

{
  "hex": "#40b751",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 81
  },
  "hsl": {
    "h": 128.571,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.69024,
    "c": 0.17715,
    "h": 145.8
  },
  "luminance": 0.35551
}

Semantic roles & 50–950 ramp

primary

#40B751

secondary

#C68DBE

accent

#50C4D8

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C140B

muted

#7D827C

Preview Lab

Preview with #40B751

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

Preview Lab → · Contrast checker → · Palette generator →