#42ACD4#42ACD4

#42ACD4 is a light, moderate cyan. Relative luminance 0.354; OKLCH L 70.0% C 0.112 H 226.9°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#42ACD4
RGB	rgb(66, 172, 212)
HSL	hsl(196, 63%, 55%)
HSV	hsv(196, 69%, 83%)
CMYK	cmyk(68.9%, 18.9%, 0%, 16.9%)
CIE-LAB	lab(66.07, -17.61, -29.11)
CIE-LCH	lch(66.07, 34.02, 238.82°)
OKLab	oklab(70.01% -0.0763 -0.0815)
OKLCH	oklch(70.01% 0.112 226.9)
XYZ	xyz(28.8782, 35.4135, 67.5881)
Luminance	0.3542 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACD4 #D46A42

analogous

#42D4B3 #42ACD4 #4263D4

triadic

#42ACD4 #D442AC #ACD442

tetradic

#42ACD4 #B342D4 #D46A42 #63D442

square

#42ACD4 #B342D4 #D46A42 #63D442

split-complementary

#42ACD4 #D44263 #D4B342

monochromatic

#1D647F #288BB1 #42ACD4 #74C2DF #A6D8EB

Accessibility & contrast

On white

2.60

#42ACD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#42ACD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACD4

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACD4	#FFFFFF	#000000	##000000
##42ACD4	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#97A9D6

Deuteranopia (green-blind)

#829AD4

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42acd4;
/* rgb */ color: rgb(66, 172, 212);
/* oklch */ color: oklch(70.0% 0.112 226.9);

Tailwind

colors: {
  custom: {
    50: '#88c4e1',
    500: '#42acd4',
    950: '#000000',
  },
}

SCSS

$custom: #42acd4;
$custom-light: #88c4e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42acd4",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 212
  },
  "hsl": {
    "h": 196.438,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.70014,
    "c": 0.11161,
    "h": 226.9
  },
  "luminance": 0.35417
}

Semantic roles & 50–950 ramp

primary

#42ACD4

secondary

#D8AB9A

accent

#6F42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #42ACD4

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

Preview Lab → · Contrast checker → · Palette generator →