#40B451#40B451

#40B451 is a light, vivid green. Relative luminance 0.343; OKLCH L 68.2% C 0.173 H 145.9°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#40B451
RGB	rgb(64, 180, 81)
HSL	hsl(129, 48%, 48%)
HSV	hsv(129, 64%, 71%)
CMYK	cmyk(64.4%, 0%, 55%, 29.4%)
CIE-LAB	lab(65.22, -53.09, 40.65)
CIE-LCH	lch(65.22, 66.87, 142.56°)
OKLab	oklab(68.24% -0.1435 0.0971)
OKLCH	oklch(68.24% 0.173 145.9)
XYZ	xyz(19.9195, 34.3246, 13.3585)
Luminance	0.3433 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B451 #B440A3

analogous

#69B440 #40B451 #40B48B

triadic

#40B451 #5140B4 #B45140

tetradic

#40B451 #4069B4 #B440A3 #B48B40

square

#40B451 #4069B4 #B440A3 #B48B40

split-complementary

#40B451 #8B40B4 #B44069

monochromatic

#205A28 #30873D #40B451 #68C976 #95D99F

Accessibility & contrast

On white

2.67

#40B451 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#40B451 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B451

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B451	#FFFFFF	#000000	##000000
##40B451	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A448

Deuteranopia (green-blind)

#A89A58

Tritanopia (blue-blind)

#20B09E

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b451;
/* rgb */ color: rgb(64, 180, 81);
/* oklch */ color: oklch(68.2% 0.173 145.9);

Tailwind

colors: {
  custom: {
    50: '#82cb84',
    500: '#40b451',
    950: '#000000',
  },
}

SCSS

$custom: #40b451;
$custom-light: #82cb84;
$custom-dark: #000000;

JSON

{
  "hex": "#40b451",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 81
  },
  "hsl": {
    "h": 128.793,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.68236,
    "c": 0.17328,
    "h": 145.9
  },
  "luminance": 0.34327
}

Semantic roles & 50–950 ramp

primary

#40B451

secondary

#C58BBC

accent

#51C3D7

background

#F8FCF8

surface

#F0F9EF

border

#CBD2CA

text

#0C130B

muted

#7D827C

Preview Lab

Preview with #40B451

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

Preview Lab → · Contrast checker → · Palette generator →