#42ACC8#42ACC8

#42ACC8 is a light, moderate cyan. Relative luminance 0.348; OKLCH L 69.5% C 0.103 H 218.6°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#42ACC8
RGB	rgb(66, 172, 200)
HSL	hsl(193, 55%, 52%)
HSV	hsv(193, 67%, 78%)
CMYK	cmyk(67%, 14%, 0%, 21.6%)
CIE-LAB	lab(65.62, -21.41, -23.17)
CIE-LCH	lch(65.62, 31.55, 227.25°)
OKLab	oklab(69.5% -0.0808 -0.0646)
OKLCH	oklch(69.5% 0.103 218.6)
XYZ	xyz(27.4203, 34.8304, 59.9102)
Luminance	0.3483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACC8 #C85E42

analogous

#42C8A1 #42ACC8 #4269C8

triadic

#42ACC8 #C842AC #ACC842

tetradic

#42ACC8 #A142C8 #C85E42 #69C842

square

#42ACC8 #A142C8 #C85E42 #69C842

split-complementary

#42ACC8 #C84269 #C8A142

monochromatic

#205F6F #2E879F #42ACC8 #71C1D6 #A1D6E4

Accessibility & contrast

On white

2.64

#42ACC8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#42ACC8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACC8

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACC8	#FFFFFF	#000000	##000000
##42ACC8	1.00	2.64	7.97	7.97
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA7CA

Deuteranopia (green-blind)

#8799C8

Tritanopia (blue-blind)

#00B6B5

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #42acc8;
/* rgb */ color: rgb(66, 172, 200);
/* oklch */ color: oklch(69.5% 0.103 218.6);

Tailwind

colors: {
  custom: {
    50: '#86c5d8',
    500: '#42acc8',
    950: '#000000',
  },
}

SCSS

$custom: #42acc8;
$custom-light: #86c5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#42acc8",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 200
  },
  "hsl": {
    "h": 192.537,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.69501,
    "c": 0.10342,
    "h": 218.6
  },
  "luminance": 0.34833
}

Semantic roles & 50–950 ramp

primary

#42ACC8

secondary

#D0A296

accent

#694ADE

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42ACC8

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

Preview Lab → · Contrast checker → · Palette generator →