#40F558#40F558

#40F558 is a very light, highly saturated green. Relative luminance 0.671; OKLCH L 85.1% C 0.245 H 144.8°. Best body text is #000000 at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#40F558
RGB	rgb(64, 245, 88)
HSL	hsl(128, 90%, 61%)
HSV	hsv(128, 74%, 96%)
CMYK	cmyk(73.9%, 0%, 64.1%, 3.9%)
CIE-LAB	lab(85.55, -74.21, 60.92)
CIE-LCH	lch(85.55, 96.01, 140.62°)
OKLab	oklab(85.09% -0.2004 0.1414)
OKLCH	oklch(85.09% 0.245 144.8)
XYZ	xyz(36.5257, 67.0952, 20.2563)
Luminance	0.6710 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40F558 #F540DD

analogous

#82F540 #40F558 #40F5B3

triadic

#40F558 #5840F5 #F55840

tetradic

#40F558 #4082F5 #F540DD #F5B340

square

#40F558 #4082F5 #F540DD #F5B340

split-complementary

#40F558 #B340F5 #F54082

monochromatic

#09B120 #0CEB2A #40F558 #7AF88B #B4FBBE

Accessibility & contrast

On white

1.46

#40F558 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.42

#40F558 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40F558

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40F558	#FFFFFF	#000000	##000000
##40F558	1.00	1.46	14.42	14.42
#FFFFFF	1.46	1.00	21.00	21.00
#000000	14.42	21.00	1.00	1.00
##000000	14.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9DE44

Deuteranopia (green-blind)

#E5D066

Tritanopia (blue-blind)

#00EFD4

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #40f558;
/* rgb */ color: rgb(64, 245, 88);
/* oklch */ color: oklch(85.1% 0.245 144.8);

Tailwind

colors: {
  custom: {
    50: '#8ffa8d',
    500: '#40f558',
    950: '#000000',
  },
}

SCSS

$custom: #40f558;
$custom-light: #8ffa8d;
$custom-dark: #000000;

JSON

{
  "hex": "#40f558",
  "rgb": {
    "r": 64,
    "g": 245,
    "b": 88
  },
  "hsl": {
    "h": 127.956,
    "s": 90.05,
    "l": 60.588
  },
  "oklch": {
    "l": 0.85094,
    "c": 0.24526,
    "h": 144.8
  },
  "luminance": 0.67099
}

Semantic roles & 50–950 ramp

primary

#40F558

secondary

#B1289F

accent

#00C7E6

background

#FCFFFC

surface

#F5FFF4

border

#CFD7CE

text

#0E170D

muted

#7F857F

Preview Lab

Preview with #40F558

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

Preview Lab → · Contrast checker → · Palette generator →