#42E258#42E258

#42E258 is a light, highly saturated green. Relative luminance 0.563; OKLCH L 80.3% C 0.223 H 145.1°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#42E258
RGB	rgb(66, 226, 88)
HSL	hsl(128, 73%, 57%)
HSV	hsv(128, 71%, 89%)
CMYK	cmyk(70.8%, 0%, 61.1%, 11.4%)
CIE-LAB	lab(79.76, -67.82, 54.44)
CIE-LCH	lch(79.76, 86.97, 141.25°)
OKLab	oklab(80.3% -0.1832 0.1276)
OKLCH	oklch(80.3% 0.223 145.1)
XYZ	xyz(31.2025, 56.2521, 18.4439)
Luminance	0.5626 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E258 #E242CC

analogous

#7CE242 #42E258 #42E2A8

triadic

#42E258 #5842E2 #E25842

tetradic

#42E258 #427CE2 #E242CC #E2A842

square

#42E258 #427CE2 #E242CC #E2A842

split-complementary

#42E258 #A842E2 #E2427C

monochromatic

#179328 #1FC836 #42E258 #77EA87 #ACF2B6

Accessibility & contrast

On white

1.71

#42E258 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#42E258 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E258

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E258	#FFFFFF	#000000	##000000
##42E258	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6CE49

Deuteranopia (green-blind)

#D3C164

Tritanopia (blue-blind)

#00DCC5

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #42e258;
/* rgb */ color: rgb(66, 226, 88);
/* oklch */ color: oklch(80.3% 0.223 145.1);

Tailwind

colors: {
  custom: {
    50: '#8cec8c',
    500: '#42e258',
    950: '#000000',
  },
}

SCSS

$custom: #42e258;
$custom-light: #8cec8c;
$custom-dark: #000000;

JSON

{
  "hex": "#42e258",
  "rgb": {
    "r": 66,
    "g": 226,
    "b": 88
  },
  "hsl": {
    "h": 128.25,
    "s": 73.394,
    "l": 57.255
  },
  "oklch": {
    "l": 0.80299,
    "c": 0.22323,
    "h": 145.1
  },
  "luminance": 0.56256
}

Semantic roles & 50–950 ramp

primary

#42E258

secondary

#983189

accent

#38D7F0

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E160C

muted

#7F857F

Preview Lab

Preview with #42E258

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

Preview Lab → · Contrast checker → · Palette generator →