#42B178#42B178

#42B178 is a light, vivid green. Relative luminance 0.340; OKLCH L 68.2% C 0.132 H 157.4°. Best body text is #000000 at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#42B178
RGB	rgb(66, 177, 120)
HSL	hsl(149, 46%, 48%)
HSV	hsv(149, 63%, 69%)
CMYK	cmyk(62.7%, 0%, 32.2%, 30.6%)
CIE-LAB	lab(64.93, -44.85, 20.09)
CIE-LCH	lch(64.93, 49.14, 155.88°)
OKLab	oklab(68.21% -0.1221 0.0508)
OKLCH	oklch(68.21% 0.132 157.4)
XYZ	xyz(21.3572, 33.9564, 23.1944)
Luminance	0.3396 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B178 #B1427B

analogous

#44B142 #42B178 #42B1AF

triadic

#42B178 #7842B1 #B17842

tetradic

#42B178 #4244B1 #B1427B #B1AF42

square

#42B178 #4244B1 #B1427B #B1AF42

split-complementary

#42B178 #AF42B1 #B14244

monochromatic

#21583C #31845A #42B178 #69C797 #96D8B6

Accessibility & contrast

On white

2.70

#42B178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.79

#42B178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B178

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B178	#FFFFFF	#000000	##000000
##42B178	1.00	2.70	7.79	7.79
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.79	21.00	1.00	1.00
##000000	7.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0A474

Deuteranopia (green-blind)

#A1997C

Tritanopia (blue-blind)

#04B0A2

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #42b178;
/* rgb */ color: rgb(66, 177, 120);
/* oklch */ color: oklch(68.2% 0.132 157.4);

Tailwind

colors: {
  custom: {
    50: '#82c99f',
    500: '#42b178',
    950: '#000000',
  },
}

SCSS

$custom: #42b178;
$custom-light: #82c99f;
$custom-dark: #000000;

JSON

{
  "hex": "#42b178",
  "rgb": {
    "r": 66,
    "g": 177,
    "b": 120
  },
  "hsl": {
    "h": 149.189,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.68209,
    "c": 0.13221,
    "h": 157.4
  },
  "luminance": 0.33959
}

Semantic roles & 50–950 ramp

primary

#42B178

secondary

#C38BA8

accent

#5296D5

background

#F8FCF9

surface

#F0F8F2

border

#CBD1CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #42B178

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

Preview Lab → · Contrast checker → · Palette generator →