#40CC51#40CC51

#40CC51 is a light, highly saturated green. Relative luminance 0.449; OKLCH L 74.5% C 0.203 H 145.0°. Best body text is #000000 at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#40CC51
RGB	rgb(64, 204, 81)
HSL	hsl(127, 58%, 53%)
HSV	hsv(127, 69%, 80%)
CMYK	cmyk(68.6%, 0%, 60.3%, 20%)
CIE-LAB	lab(72.80, -61.60, 49.55)
CIE-LCH	lch(72.80, 79.06, 141.19°)
OKLab	oklab(74.51% -0.1665 0.1165)
OKLCH	oklch(74.51% 0.203 145)
XYZ	xyz(25.1908, 44.8671, 15.1156)
Luminance	0.4487 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40CC51 #CC40BB

analogous

#75CC40 #40CC51 #40CC97

triadic

#40CC51 #5140CC #CC5140

tetradic

#40CC51 #4075CC #CC40BB #CC9740

square

#40CC51 #4075CC #CC40BB #CC9740

split-complementary

#40CC51 #9740CC #CC4075

monochromatic

#1F7329 #2CA33A #40CC51 #70D97D #A1E6A9

Accessibility & contrast

On white

2.11

#40CC51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.97

#40CC51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40CC51

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40CC51	#FFFFFF	#000000	##000000
##40CC51	1.00	2.11	9.97	9.97
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.97	21.00	1.00	1.00
##000000	9.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFBA44

Deuteranopia (green-blind)

#BFAE5B

Tritanopia (blue-blind)

#0BC7B2

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #40cc51;
/* rgb */ color: rgb(64, 204, 81);
/* oklch */ color: oklch(74.5% 0.203 145.0);

Tailwind

colors: {
  custom: {
    50: '#87dd86',
    500: '#40cc51',
    950: '#000000',
  },
}

SCSS

$custom: #40cc51;
$custom-light: #87dd86;
$custom-dark: #000000;

JSON

{
  "hex": "#40cc51",
  "rgb": {
    "r": 64,
    "g": 204,
    "b": 81
  },
  "hsl": {
    "h": 127.286,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.74507,
    "c": 0.20321,
    "h": 145
  },
  "luminance": 0.4487
}

Semantic roles & 50–950 ramp

primary

#40CC51

secondary

#D295CB

accent

#47CEE1

background

#F9FDF8

surface

#F1FBF0

border

#CBD4CB

text

#0D150B

muted

#7E837C

Preview Lab

Preview with #40CC51

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

Preview Lab → · Contrast checker → · Palette generator →