#42A4C7#42A4C7

#42A4C7 is a light, moderate cyan. Relative luminance 0.318; OKLCH L 67.6% C 0.104 H 225.2°. Best body text is #000000 at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#42A4C7
RGB	rgb(66, 164, 199)
HSL	hsl(196, 54%, 52%)
HSV	hsv(196, 67%, 78%)
CMYK	cmyk(66.8%, 17.6%, 0%, 22%)
CIE-LAB	lab(63.20, -17.54, -26.32)
CIE-LCH	lch(63.20, 31.62, 236.32°)
OKLab	oklab(67.55% -0.073 -0.0735)
OKLCH	oklch(67.55% 0.104 225.2)
XYZ	xyz(25.8269, 31.8299, 58.8044)
Luminance	0.3183 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A4C7 #C76542

analogous

#42C7A7 #42A4C7 #4262C7

triadic

#42A4C7 #C742A4 #A4C742

tetradic

#42A4C7 #A742C7 #C76542 #62C742

square

#42A4C7 #A742C7 #C76542 #62C742

split-complementary

#42A4C7 #C74262 #C7A742

monochromatic

#215A6E #2F809D #42A4C7 #71BBD5 #A0D1E3

Accessibility & contrast

On white

2.85

#42A4C7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.37

#42A4C7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A4C7

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A4C7	#FFFFFF	#000000	##000000
##42A4C7	1.00	2.85	7.37	7.37
#FFFFFF	2.85	1.00	21.00	21.00
#000000	7.37	21.00	1.00	1.00
##000000	7.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A1C9

Deuteranopia (green-blind)

#7E93C7

Tritanopia (blue-blind)

#00AEAF

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #42a4c7;
/* rgb */ color: rgb(66, 164, 199);
/* oklch */ color: oklch(67.6% 0.104 225.2);

Tailwind

colors: {
  custom: {
    50: '#85bfd8',
    500: '#42a4c7',
    950: '#000000',
  },
}

SCSS

$custom: #42a4c7;
$custom-light: #85bfd8;
$custom-dark: #000000;

JSON

{
  "hex": "#42a4c7",
  "rgb": {
    "r": 66,
    "g": 164,
    "b": 199
  },
  "hsl": {
    "h": 195.789,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.67555,
    "c": 0.1036,
    "h": 225.2
  },
  "luminance": 0.31833
}

Semantic roles & 50–950 ramp

primary

#42A4C7

secondary

#D0A595

accent

#714ADE

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42A4C7

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

Preview Lab → · Contrast checker → · Palette generator →