#42B6DC#42B6DC

#42B6DC is a light, moderate cyan. Relative luminance 0.398; OKLCH L 72.7% C 0.115 H 223.8°. Best body text is #000000 at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#42B6DC
RGB	rgb(66, 182, 220)
HSL	hsl(195, 69%, 56%)
HSV	hsv(195, 70%, 86%)
CMYK	cmyk(70%, 17.3%, 0%, 13.7%)
CIE-LAB	lab(69.31, -20.29, -28.51)
CIE-LCH	lch(69.31, 34.99, 234.56°)
OKLab	oklab(72.71% -0.0832 -0.0797)
OKLCH	oklch(72.71% 0.115 223.8)
XYZ	xyz(31.8877, 39.7778, 73.6936)
Luminance	0.3978 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B6DC #DC6842

analogous

#42DCB5 #42B6DC #4269DC

triadic

#42B6DC #DC42B6 #B6DC42

tetradic

#42B6DC #B542DC #DC6842 #69DC42

square

#42B6DC #B542DC #DC6842 #69DC42

split-complementary

#42B6DC #DC4269 #DCB542

monochromatic

#1A6E8A #2398BE #42B6DC #76CAE6 #A9DEEF

Accessibility & contrast

On white

2.34

#42B6DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.96

#42B6DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B6DC

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B6DC	#FFFFFF	#000000	##000000
##42B6DC	1.00	2.34	8.96	8.96
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.96	21.00	1.00	1.00
##000000	8.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DE

Deuteranopia (green-blind)

#8BA3DC

Tritanopia (blue-blind)

#00C2C2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b6dc;
/* rgb */ color: rgb(66, 182, 220);
/* oklch */ color: oklch(72.7% 0.115 223.8);

Tailwind

colors: {
  custom: {
    50: '#89cce7',
    500: '#42b6dc',
    950: '#000000',
  },
}

SCSS

$custom: #42b6dc;
$custom-light: #89cce7;
$custom-dark: #000000;

JSON

{
  "hex": "#42b6dc",
  "rgb": {
    "r": 66,
    "g": 182,
    "b": 220
  },
  "hsl": {
    "h": 194.805,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.7271,
    "c": 0.11525,
    "h": 223.8
  },
  "luminance": 0.39781
}

Semantic roles & 50–950 ramp

primary

#42B6DC

secondary

#DDAD9D

accent

#673CEC

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #42B6DC

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

Preview Lab → · Contrast checker → · Palette generator →