#42ACC7#42ACC7

#42ACC7 is a light, moderate cyan. Relative luminance 0.348; OKLCH L 69.5% C 0.103 H 217.9°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#42ACC7
RGB	rgb(66, 172, 199)
HSL	hsl(192, 54%, 52%)
HSV	hsv(192, 67%, 78%)
CMYK	cmyk(66.8%, 13.6%, 0%, 22%)
CIE-LAB	lab(65.58, -21.73, -22.67)
CIE-LCH	lch(65.58, 31.40, 226.22°)
OKLab	oklab(69.46% -0.0812 -0.0631)
OKLCH	oklch(69.46% 0.103 217.9)
XYZ	xyz(27.3038, 34.7838, 59.2967)
Luminance	0.3479 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACC7 #C75D42

analogous

#42C79F #42ACC7 #426AC7

triadic

#42ACC7 #C742AC #ACC742

tetradic

#42ACC7 #9F42C7 #C75D42 #6AC742

square

#42ACC7 #9F42C7 #C75D42 #6AC742

split-complementary

#42ACC7 #C7426A #C79F42

monochromatic

#215E6E #2F879D #42ACC7 #71C1D5 #A0D5E3

Accessibility & contrast

On white

2.64

#42ACC7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#42ACC7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACC7

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACC7	#FFFFFF	#000000	##000000
##42ACC7	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BA7C8

Deuteranopia (green-blind)

#8899C7

Tritanopia (blue-blind)

#00B5B4

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #42acc7;
/* rgb */ color: rgb(66, 172, 199);
/* oklch */ color: oklch(69.5% 0.103 217.9);

Tailwind

colors: {
  custom: {
    50: '#86c5d8',
    500: '#42acc7',
    950: '#000000',
  },
}

SCSS

$custom: #42acc7;
$custom-light: #86c5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#42acc7",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 199
  },
  "hsl": {
    "h": 192.18,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.6946,
    "c": 0.10286,
    "h": 217.9
  },
  "luminance": 0.34787
}

Semantic roles & 50–950 ramp

primary

#42ACC7

secondary

#D0A195

accent

#684ADE

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42ACC7

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

Preview Lab → · Contrast checker → · Palette generator →