#42EA5B#42EA5B

#42EA5B is a very light, highly saturated green. Relative luminance 0.608; OKLCH L 82.4% C 0.230 H 145.3°. Best body text is #000000 at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#42EA5B
RGB	rgb(66, 234, 91)
HSL	hsl(129, 80%, 59%)
HSV	hsv(129, 72%, 92%)
CMYK	cmyk(71.8%, 0%, 61.1%, 8.2%)
CIE-LAB	lab(82.25, -70.10, 55.98)
CIE-LCH	lch(82.25, 89.71, 141.39°)
OKLab	oklab(82.37% -0.1892 0.1311)
OKLCH	oklch(82.37% 0.23 145.3)
XYZ	xyz(33.5556, 60.7554, 19.8540)
Luminance	0.6076 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42EA5B #EA42D1

analogous

#7DEA42 #42EA5B #42EAAF

triadic

#42EA5B #5B42EA #EA5B42

tetradic

#42EA5B #427DEA #EA42D1 #EAAF42

square

#42EA5B #427DEA #EA42D1 #EAAF42

split-complementary

#42EA5B #AF42EA #EA427D

monochromatic

#12A027 #18D734 #42EA5B #79F08B #B0F6BB

Accessibility & contrast

On white

1.60

#42EA5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.15

#42EA5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42EA5B

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42EA5B	#FFFFFF	#000000	##000000
##42EA5B	1.00	1.60	13.15	13.15
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.15	21.00	1.00	1.00
##000000	13.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EED54B

Deuteranopia (green-blind)

#DAC767

Tritanopia (blue-blind)

#00E4CC

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #42ea5b;
/* rgb */ color: rgb(66, 234, 91);
/* oklch */ color: oklch(82.4% 0.230 145.3);

Tailwind

colors: {
  custom: {
    50: '#8df28e',
    500: '#42ea5b',
    950: '#000000',
  },
}

SCSS

$custom: #42ea5b;
$custom-light: #8df28e;
$custom-dark: #000000;

JSON

{
  "hex": "#42ea5b",
  "rgb": {
    "r": 66,
    "g": 234,
    "b": 91
  },
  "hsl": {
    "h": 128.929,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.82372,
    "c": 0.23022,
    "h": 145.3
  },
  "luminance": 0.60759
}

Semantic roles & 50–950 ramp

primary

#42EA5B

secondary

#A22E91

accent

#31D9F6

background

#FCFFFC

surface

#F5FEF4

border

#CFD6CE

text

#0E170D

muted

#7F857F

Preview Lab

Preview with #42EA5B

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

Preview Lab → · Contrast checker → · Palette generator →