#42B2DC#42B2DC

#42B2DC is a light, moderate cyan. Relative luminance 0.382; OKLCH L 71.8% C 0.116 H 227.0°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#42B2DC
RGB	rgb(66, 178, 220)
HSL	hsl(196, 69%, 56%)
HSV	hsv(196, 70%, 86%)
CMYK	cmyk(70%, 19.1%, 0%, 13.7%)
CIE-LAB	lab(68.14, -18.20, -30.31)
CIE-LCH	lch(68.14, 35.36, 239.01°)
OKLab	oklab(71.77% -0.0793 -0.0849)
OKLCH	oklch(71.77% 0.116 227)
XYZ	xyz(31.0802, 38.1628, 73.4244)
Luminance	0.3817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B2DC #DC6C42

analogous

#42DCB9 #42B2DC #4265DC

triadic

#42B2DC #DC42B2 #B2DC42

tetradic

#42B2DC #B942DC #DC6C42 #65DC42

square

#42B2DC #B942DC #DC6C42 #65DC42

split-complementary

#42B2DC #DC4265 #DCB942

monochromatic

#1A6B8A #2394BE #42B2DC #76C7E6 #A9DCEF

Accessibility & contrast

On white

2.43

#42B2DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#42B2DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B2DC

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B2DC	#FFFFFF	#000000	##000000
##42B2DC	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CAFDE

Deuteranopia (green-blind)

#869FDB

Tritanopia (blue-blind)

#00BEC0

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b2dc;
/* rgb */ color: rgb(66, 178, 220);
/* oklch */ color: oklch(71.8% 0.116 227.0);

Tailwind

colors: {
  custom: {
    50: '#89c9e7',
    500: '#42b2dc',
    950: '#000000',
  },
}

SCSS

$custom: #42b2dc;
$custom-light: #89c9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#42b2dc",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 220
  },
  "hsl": {
    "h": 196.364,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.71773,
    "c": 0.11617,
    "h": 227
  },
  "luminance": 0.38166
}

Semantic roles & 50–950 ramp

primary

#42B2DC

secondary

#DDAE9D

accent

#6C3CEC

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #42B2DC

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

Preview Lab → · Contrast checker → · Palette generator →