#42D557#42D557

#42D557 is a light, highly saturated green. Relative luminance 0.494; OKLCH L 77.0% C 0.209 H 145.4°. Best body text is #000000 at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#42D557
RGB	rgb(66, 213, 87)
HSL	hsl(129, 64%, 55%)
HSV	hsv(129, 69%, 84%)
CMYK	cmyk(69%, 0%, 59.2%, 16.5%)
CIE-LAB	lab(75.72, -63.60, 50.25)
CIE-LCH	lch(75.72, 81.06, 141.69°)
OKLab	oklab(76.95% -0.1718 0.1185)
OKLCH	oklch(76.95% 0.209 145.4)
XYZ	xyz(27.7594, 49.4318, 17.0933)
Luminance	0.4944 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D557 #D542C0

analogous

#77D542 #42D557 #42D5A0

triadic

#42D557 #5742D5 #D55742

tetradic

#42D557 #4277D5 #D542C0 #D5A042

square

#42D557 #4277D5 #D542C0 #D5A042

split-complementary

#42D557 #A042D5 #D54277

monochromatic

#1C802B #28B23B #42D557 #74E084 #A6EBB0

Accessibility & contrast

On white

1.93

#42D557 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.89

#42D557 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D557

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D557	#FFFFFF	#000000	##000000
##42D557	1.00	1.93	10.89	10.89
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.89	21.00	1.00	1.00
##000000	10.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C24A

Deuteranopia (green-blind)

#C7B661

Tritanopia (blue-blind)

#01D0BA

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #42d557;
/* rgb */ color: rgb(66, 213, 87);
/* oklch */ color: oklch(77.0% 0.209 145.4);

Tailwind

colors: {
  custom: {
    50: '#89e38a',
    500: '#42d557',
    950: '#000000',
  },
}

SCSS

$custom: #42d557;
$custom-light: #89e38a;
$custom-dark: #000000;

JSON

{
  "hex": "#42d557",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 87
  },
  "hsl": {
    "h": 128.571,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.76952,
    "c": 0.20868,
    "h": 145.4
  },
  "luminance": 0.49435
}

Semantic roles & 50–950 ramp

primary

#42D557

secondary

#D89AD0

accent

#41CFE7

background

#F9FEF8

surface

#F1FCF0

border

#CBD5CB

text

#0D160C

muted

#7E847D

Preview Lab

Preview with #42D557

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

Preview Lab → · Contrast checker → · Palette generator →