#40FF4F#40FF4F

#40FF4F is a very light, highly saturated green. Relative luminance 0.732; OKLCH L 87.5% C 0.262 H 143.8°. Best body text is #000000 at 15.64:1 contrast (WCAG AA passes).

Color values

HEX	#40FF4F
RGB	rgb(64, 255, 79)
HSL	hsl(125, 100%, 63%)
HSV	hsv(125, 75%, 100%)
CMYK	cmyk(74.9%, 0%, 69%, 0%)
CIE-LAB	lab(88.53, -78.11, 67.59)
CIE-LCH	lch(88.53, 103.29, 139.13°)
OKLab	oklab(87.54% -0.2114 0.1545)
OKLCH	oklch(87.54% 0.262 143.8)
XYZ	xyz(39.2830, 73.1699, 19.4485)
Luminance	0.7318 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40FF4F #FF40F0

analogous

#91FF40 #40FF4F #40FFAE

triadic

#40FF4F #4F40FF #FF4F40

tetradic

#40FF4F #4091FF #FF40F0 #FFAE40

square

#40FF4F #4091FF #FF40F0 #FFAE40

split-complementary

#40FF4F #AE40FF #FF4091

monochromatic

#00C50F #03FF17 #40FF4F #7DFF87 #BAFFC0

Accessibility & contrast

On white

1.34

#40FF4F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.64

#40FF4F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40FF4F

15.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40FF4F	#FFFFFF	#000000	##000000
##40FF4F	1.00	1.34	15.64	15.64
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.64	21.00	1.00	1.00
##000000	15.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE734

Deuteranopia (green-blind)

#EFD960

Tritanopia (blue-blind)

#00F8DC

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #40ff4f;
/* rgb */ color: rgb(64, 255, 79);
/* oklch */ color: oklch(87.5% 0.262 143.8);

Tailwind

colors: {
  custom: {
    50: '#92ff89',
    500: '#40ff4f',
    950: '#000000',
  },
}

SCSS

$custom: #40ff4f;
$custom-light: #92ff89;
$custom-dark: #000000;

JSON

{
  "hex": "#40ff4f",
  "rgb": {
    "r": 64,
    "g": 255,
    "b": 79
  },
  "hsl": {
    "h": 124.712,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.87544,
    "c": 0.26181,
    "h": 143.8
  },
  "luminance": 0.73175
}

Semantic roles & 50–950 ramp

primary

#40FF4F

secondary

#C122B5

accent

#00D3E6

background

#FCFFFC

surface

#F5FFF4

border

#CFD7CE

text

#0F180C

muted

#80867F

Preview Lab

Preview with #40FF4F

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

Preview Lab → · Contrast checker → · Palette generator →