#42B778#42B778

#42B778 is a light, vivid green. Relative luminance 0.364; OKLCH L 69.8% C 0.141 H 156.1°. Best body text is #000000 at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#42B778
RGB	rgb(66, 183, 120)
HSL	hsl(148, 47%, 49%)
HSV	hsv(148, 64%, 72%)
CMYK	cmyk(63.9%, 0%, 34.4%, 28.2%)
CIE-LAB	lab(66.81, -47.32, 22.64)
CIE-LCH	lch(66.81, 52.45, 154.43°)
OKLab	oklab(69.75% -0.1284 0.057)
OKLCH	oklch(69.75% 0.141 156.1)
XYZ	xyz(22.5684, 36.3790, 23.5981)
Luminance	0.3638 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B778 #B74281

analogous

#47B742 #42B778 #42B7B3

triadic

#42B778 #7842B7 #B77842

tetradic

#42B778 #4247B7 #B74281 #B7B342

square

#42B778 #4247B7 #B74281 #B7B342

split-complementary

#42B778 #B342B7 #B74247

monochromatic

#225D3D #328A5B #42B778 #6CCA97 #99DAB7

Accessibility & contrast

On white

2.54

#42B778 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.28

#42B778 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B778

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B778	#FFFFFF	#000000	##000000
##42B778	1.00	2.54	8.28	8.28
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.28	21.00	1.00	1.00
##000000	8.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A974

Deuteranopia (green-blind)

#A79E7C

Tritanopia (blue-blind)

#00B5A7

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #42b778;
/* rgb */ color: rgb(66, 183, 120);
/* oklch */ color: oklch(69.8% 0.141 156.1);

Tailwind

colors: {
  custom: {
    50: '#83cd9f',
    500: '#42b778',
    950: '#000000',
  },
}

SCSS

$custom: #42b778;
$custom-light: #83cd9f;
$custom-dark: #000000;

JSON

{
  "hex": "#42b778",
  "rgb": {
    "r": 66,
    "g": 183,
    "b": 120
  },
  "hsl": {
    "h": 147.692,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.69752,
    "c": 0.1405,
    "h": 156.1
  },
  "luminance": 0.36381
}

Semantic roles & 50–950 ramp

primary

#42B778

secondary

#C68FAD

accent

#5199D7

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0C140E

muted

#7D827E

Preview Lab

Preview with #42B778

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

Preview Lab → · Contrast checker → · Palette generator →