#42D57B#42D57B

#42D57B is a light, vivid green. Relative luminance 0.502; OKLCH L 77.5% C 0.178 H 152.2°. Best body text is #000000 at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#42D57B
RGB	rgb(66, 213, 123)
HSL	hsl(143, 64%, 55%)
HSV	hsv(143, 69%, 84%)
CMYK	cmyk(69%, 0%, 42.3%, 16.5%)
CIE-LAB	lab(76.18, -58.34, 33.49)
CIE-LCH	lch(76.18, 67.27, 150.14°)
OKLab	oklab(77.48% -0.1573 0.0828)
OKLCH	oklch(77.48% 0.178 152.2)
XYZ	xyz(29.6136, 50.1735, 26.8588)
Luminance	0.5018 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42D57B #D5429C

analogous

#53D542 #42D57B #42D5C4

triadic

#42D57B #7B42D5 #D57B42

tetradic

#42D57B #4253D5 #D5429C #D5C442

square

#42D57B #4253D5 #D5429C #D5C442

split-complementary

#42D57B #C442D5 #D54253

monochromatic

#1C8043 #28B25D #42D57B #74E09E #A6EBC1

Accessibility & contrast

On white

1.90

#42D57B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.04

#42D57B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42D57B

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42D57B	#FFFFFF	#000000	##000000
##42D57B	1.00	1.90	11.04	11.04
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.04	21.00	1.00	1.00
##000000	11.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5C474

Deuteranopia (green-blind)

#C3B781

Tritanopia (blue-blind)

#00D2BF

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #42d57b;
/* rgb */ color: rgb(66, 213, 123);
/* oklch */ color: oklch(77.5% 0.178 152.2);

Tailwind

colors: {
  custom: {
    50: '#88e3a2',
    500: '#42d57b',
    950: '#000000',
  },
}

SCSS

$custom: #42d57b;
$custom-light: #88e3a2;
$custom-dark: #000000;

JSON

{
  "hex": "#42d57b",
  "rgb": {
    "r": 66,
    "g": 213,
    "b": 123
  },
  "hsl": {
    "h": 143.265,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.77477,
    "c": 0.17775,
    "h": 152.2
  },
  "luminance": 0.50177
}

Semantic roles & 50–950 ramp

primary

#42D57B

secondary

#873467

accent

#41A6E7

background

#FCFEFC

surface

#F4FCF5

border

#CED5CF

text

#0D160F

muted

#7F8480

Preview Lab

Preview with #42D57B

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

Preview Lab → · Contrast checker → · Palette generator →