#42E18F#42E18F

#42E18F is a light, vivid green. Relative luminance 0.570; OKLCH L 80.9% C 0.175 H 155.9°. Best body text is #000000 at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#42E18F
RGB	rgb(66, 225, 143)
HSL	hsl(149, 73%, 57%)
HSV	hsv(149, 71%, 88%)
CMYK	cmyk(70.7%, 0%, 36.4%, 11.8%)
CIE-LAB	lab(80.17, -59.16, 28.57)
CIE-LCH	lch(80.17, 65.70, 154.22°)
OKLab	oklab(80.88% -0.16 0.0716)
OKLCH	oklch(80.88% 0.175 155.9)
XYZ	xyz(34.1267, 56.9880, 35.1825)
Luminance	0.5699 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E18F #E14294

analogous

#44E142 #42E18F #42E1DF

triadic

#42E18F #8F42E1 #E18F42

tetradic

#42E18F #4244E1 #E14294 #E1DF42

square

#42E18F #4244E1 #E14294 #E1DF42

split-complementary

#42E18F #DF42E1 #E14244

monochromatic

#179252 #1FC670 #42E18F #77E9AE #ACF2CE

Accessibility & contrast

On white

1.69

#42E18F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.40

#42E18F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E18F

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E18F	#FFFFFF	#000000	##000000
##42E18F	1.00	1.69	12.40	12.40
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.40	21.00	1.00	1.00
##000000	12.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0CF8A

Deuteranopia (green-blind)

#CCC194

Tritanopia (blue-blind)

#00DFCC

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #42e18f;
/* rgb */ color: rgb(66, 225, 143);
/* oklch */ color: oklch(80.9% 0.175 155.9);

Tailwind

colors: {
  custom: {
    50: '#8aebb0',
    500: '#42e18f',
    950: '#000000',
  },
}

SCSS

$custom: #42e18f;
$custom-light: #8aebb0;
$custom-dark: #000000;

JSON

{
  "hex": "#42e18f",
  "rgb": {
    "r": 66,
    "g": 225,
    "b": 143
  },
  "hsl": {
    "h": 149.057,
    "s": 72.603,
    "l": 57.059
  },
  "oklch": {
    "l": 0.80878,
    "c": 0.17527,
    "h": 155.9
  },
  "luminance": 0.56992
}

Semantic roles & 50–950 ramp

primary

#42E18F

secondary

#963165

accent

#3897EF

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1610

muted

#7F8581

Preview Lab

Preview with #42E18F

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

Preview Lab → · Contrast checker → · Palette generator →