#42E549#42E549

#42E549 is a light, highly saturated green. Relative luminance 0.577; OKLCH L 80.9% C 0.237 H 143.5°. Best body text is #000000 at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#42E549
RGB	rgb(66, 229, 73)
HSL	hsl(123, 76%, 58%)
HSV	hsv(123, 71%, 90%)
CMYK	cmyk(71.2%, 0%, 68.1%, 10.2%)
CIE-LAB	lab(80.56, -70.30, 61.43)
CIE-LCH	lch(80.56, 93.36, 138.85°)
OKLab	oklab(80.92% -0.1905 0.1409)
OKLCH	oklch(80.92% 0.237 143.5)
XYZ	xyz(31.4667, 57.6744, 15.7760)
Luminance	0.5768 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42E549 #E542DE

analogous

#8CE542 #42E549 #42E59B

triadic

#42E549 #4942E5 #E54942

tetradic

#42E549 #428CE5 #E542DE #E59B42

square

#42E549 #428CE5 #E542DE #E59B42

split-complementary

#42E549 #9B42E5 #E5428C

monochromatic

#15981A #1CCE24 #42E549 #78EC7D #AEF4B1

Accessibility & contrast

On white

1.68

#42E549 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.54

#42E549 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42E549

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42E549	#FFFFFF	#000000	##000000
##42E549	1.00	1.68	12.54	12.54
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.54	21.00	1.00	1.00
##000000	12.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD032

Deuteranopia (green-blind)

#D7C358

Tritanopia (blue-blind)

#00DFC6

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #42e549;
/* rgb */ color: rgb(66, 229, 73);
/* oklch */ color: oklch(80.9% 0.237 143.5);

Tailwind

colors: {
  custom: {
    50: '#8def83',
    500: '#42e549',
    950: '#000000',
  },
}

SCSS

$custom: #42e549;
$custom-light: #8def83;
$custom-dark: #000000;

JSON

{
  "hex": "#42e549",
  "rgb": {
    "r": 66,
    "g": 229,
    "b": 73
  },
  "hsl": {
    "h": 122.577,
    "s": 75.814,
    "l": 57.843
  },
  "oklch": {
    "l": 0.80922,
    "c": 0.23695,
    "h": 143.5
  },
  "luminance": 0.57678
}

Semantic roles & 50–950 ramp

primary

#42E549

secondary

#9C3097

accent

#35EAF2

background

#FCFFFB

surface

#F5FEF2

border

#CFD6CC

text

#0E170B

muted

#7F857E

Preview Lab

Preview with #42E549

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

Preview Lab → · Contrast checker → · Palette generator →