#42E57B#42E57B

#42E57B is a light, vivid green. Relative luminance 0.586; OKLCH L 81.5% C 0.198 H 150.6°. Best body text is #000000 at 12.73:1 contrast (WCAG AA passes).

Color values

HEX	#42E57B
RGB	rgb(66, 229, 123)
HSL	hsl(141, 76%, 58%)
HSV	hsv(141, 71%, 90%)
CMYK	cmyk(71.2%, 0%, 46.3%, 10.2%)
CIE-LAB	lab(81.08, -64.09, 39.80)
CIE-LCH	lch(81.08, 75.44, 148.16°)
OKLab	oklab(81.53% -0.1725 0.0974)
OKLCH	oklch(81.53% 0.198 150.6)
XYZ	xyz(33.8384, 58.6231, 28.2671)
Luminance	0.5863 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E57B #E542AC

analogous

#5AE542 #42E57B #42E5CD

triadic

#42E57B #7B42E5 #E57B42

tetradic

#42E57B #425AE5 #E542AC #E5CD42

square

#42E57B #425AE5 #E542AC #E5CD42

split-complementary

#42E57B #CD42E5 #E5425A

monochromatic

#159843 #1CCE5A #42E57B #78ECA1 #AEF4C6

Accessibility & contrast

On white

1.65

#42E57B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.73

#42E57B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E57B

12.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E57B	#FFFFFF	#000000	##000000
##42E57B	1.00	1.65	12.73	12.73
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.73	21.00	1.00	1.00
##000000	12.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6D273

Deuteranopia (green-blind)

#D3C482

Tritanopia (blue-blind)

#00E1CC

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #42e57b;
/* rgb */ color: rgb(66, 229, 123);
/* oklch */ color: oklch(81.5% 0.198 150.6);

Tailwind

colors: {
  custom: {
    50: '#8beea3',
    500: '#42e57b',
    950: '#000000',
  },
}

SCSS

$custom: #42e57b;
$custom-light: #8beea3;
$custom-dark: #000000;

JSON

{
  "hex": "#42e57b",
  "rgb": {
    "r": 66,
    "g": 229,
    "b": 123
  },
  "hsl": {
    "h": 140.982,
    "s": 75.814,
    "l": 57.843
  },
  "oklch": {
    "l": 0.81529,
    "c": 0.19806,
    "h": 150.6
  },
  "luminance": 0.58627
}

Semantic roles & 50–950 ramp

primary

#42E57B

secondary

#9C3076

accent

#35B0F2

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #42E57B

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

Preview Lab → · Contrast checker → · Palette generator →