#42E558#42E558

#42E558 is a light, highly saturated green. Relative luminance 0.579; OKLCH L 81.1% C 0.227 H 145.1°. Best body text is #000000 at 12.58:1 contrast (WCAG AA passes).

Color values

HEX	#42E558
RGB	rgb(66, 229, 88)
HSL	hsl(128, 76%, 58%)
HSV	hsv(128, 71%, 90%)
CMYK	cmyk(71.2%, 0%, 61.6%, 10.2%)
CIE-LAB	lab(80.68, -68.81, 55.49)
CIE-LCH	lch(80.68, 88.39, 141.12°)
OKLab	oklab(81.07% -0.1858 0.1298)
OKLCH	oklch(81.07% 0.227 145.1)
XYZ	xyz(32.0254, 57.8979, 18.7182)
Luminance	0.5790 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E558 #E542CF

analogous

#7DE542 #42E558 #42E5A9

triadic

#42E558 #5842E5 #E55842

tetradic

#42E558 #427DE5 #E542CF #E5A942

square

#42E558 #427DE5 #E542CF #E5A942

split-complementary

#42E558 #A942E5 #E5427D

monochromatic

#159827 #1CCE34 #42E558 #78EC88 #AEF4B7

Accessibility & contrast

On white

1.67

#42E558 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.58

#42E558 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E558

12.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E558	#FFFFFF	#000000	##000000
##42E558	1.00	1.67	12.58	12.58
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.58	21.00	1.00	1.00
##000000	12.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D048

Deuteranopia (green-blind)

#D6C364

Tritanopia (blue-blind)

#00DFC7

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #42e558;
/* rgb */ color: rgb(66, 229, 88);
/* oklch */ color: oklch(81.1% 0.227 145.1);

Tailwind

colors: {
  custom: {
    50: '#8dee8c',
    500: '#42e558',
    950: '#000000',
  },
}

SCSS

$custom: #42e558;
$custom-light: #8dee8c;
$custom-dark: #000000;

JSON

{
  "hex": "#42e558",
  "rgb": {
    "r": 66,
    "g": 229,
    "b": 88
  },
  "hsl": {
    "h": 128.098,
    "s": 75.814,
    "l": 57.843
  },
  "oklch": {
    "l": 0.81065,
    "c": 0.22669,
    "h": 145.1
  },
  "luminance": 0.57901
}

Semantic roles & 50–950 ramp

primary

#42E558

secondary

#9C308D

accent

#35D9F2

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E170C

muted

#7F857F

Preview Lab

Preview with #42E558

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

Preview Lab → · Contrast checker → · Palette generator →