#42A6D4#42A6D4

#42A6D4 is a light, moderate cyan. Relative luminance 0.332; OKLCH L 68.6% C 0.114 H 231.8°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#42A6D4
RGB	rgb(66, 166, 212)
HSL	hsl(199, 63%, 55%)
HSV	hsv(199, 69%, 83%)
CMYK	cmyk(68.9%, 21.7%, 0%, 16.9%)
CIE-LAB	lab(64.31, -14.41, -31.83)
CIE-LCH	lch(64.31, 34.94, 245.65°)
OKLab	oklab(68.61% -0.0703 -0.0893)
OKLCH	oklch(68.61% 0.114 231.8)
XYZ	xyz(27.7619, 33.1811, 67.2161)
Luminance	0.3318 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A6D4 #D47042

analogous

#42D4B9 #42A6D4 #425DD4

triadic

#42A6D4 #D442A6 #A6D442

tetradic

#42A6D4 #B942D4 #D47042 #5DD442

square

#42A6D4 #B942D4 #D47042 #5DD442

split-complementary

#42A6D4 #D4425D #D4B942

monochromatic

#1D607F #2886B1 #42A6D4 #74BDDF #A6D5EB

Accessibility & contrast

On white

2.75

#42A6D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#42A6D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A6D4

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A6D4	#FFFFFF	#000000	##000000
##42A6D4	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA4D6

Deuteranopia (green-blind)

#7B96D3

Tritanopia (blue-blind)

#00B2B5

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #42a6d4;
/* rgb */ color: rgb(66, 166, 212);
/* oklch */ color: oklch(68.6% 0.114 231.8);

Tailwind

colors: {
  custom: {
    50: '#87c0e1',
    500: '#42a6d4',
    950: '#000000',
  },
}

SCSS

$custom: #42a6d4;
$custom-light: #87c0e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a6d4",
  "rgb": {
    "r": 66,
    "g": 166,
    "b": 212
  },
  "hsl": {
    "h": 198.904,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.68607,
    "c": 0.11366,
    "h": 231.8
  },
  "luminance": 0.33184
}

Semantic roles & 50–950 ramp

primary

#42A6D4

secondary

#D8AD9A

accent

#7642E6

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A6D4

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

Preview Lab → · Contrast checker → · Palette generator →