#42AFCC#42AFCC

#42AFCC is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.4% C 0.106 H 218.9°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#42AFCC
RGB	rgb(66, 175, 204)
HSL	hsl(193, 58%, 53%)
HSV	hsv(193, 68%, 80%)
CMYK	cmyk(67.6%, 14.2%, 0%, 20%)
CIE-LAB	lab(66.65, -21.71, -23.80)
CIE-LCH	lch(66.65, 32.21, 227.62°)
OKLab	oklab(70.38% -0.0823 -0.0663)
OKLCH	oklch(70.38% 0.106 218.9)
XYZ	xyz(28.4713, 36.1747, 62.5969)
Luminance	0.3618 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFCC #CC5F42

analogous

#42CCA4 #42AFCC #426ACC

triadic

#42AFCC #CC42AF #AFCC42

tetradic

#42AFCC #A442CC #CC5F42 #6ACC42

square

#42AFCC #A442CC #CC5F42 #6ACC42

split-complementary

#42AFCC #CC426A #CCA442

monochromatic

#1F6274 #2C8BA4 #42AFCC #72C3D9 #A2D8E6

Accessibility & contrast

On white

2.55

#42AFCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#42AFCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFCC

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFCC	#FFFFFF	#000000	##000000
##42AFCC	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAACE

Deuteranopia (green-blind)

#899CCC

Tritanopia (blue-blind)

#00B9B8

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42afcc;
/* rgb */ color: rgb(66, 175, 204);
/* oklch */ color: oklch(70.4% 0.106 218.9);

Tailwind

colors: {
  custom: {
    50: '#87c7db',
    500: '#42afcc',
    950: '#000000',
  },
}

SCSS

$custom: #42afcc;
$custom-light: #87c7db;
$custom-dark: #000000;

JSON

{
  "hex": "#42afcc",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 204
  },
  "hsl": {
    "h": 192.609,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.70382,
    "c": 0.1057,
    "h": 218.9
  },
  "luminance": 0.36178
}

Semantic roles & 50–950 ramp

primary

#42AFCC

secondary

#D3A497

accent

#6747E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #42AFCC

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

Preview Lab → · Contrast checker → · Palette generator →