#42ADCE#42ADCE

#42ADCE is a light, moderate cyan. Relative luminance 0.355; OKLCH L 70.0% C 0.107 H 222.1°. Best body text is #000000 at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#42ADCE
RGB	rgb(66, 173, 206)
HSL	hsl(194, 59%, 53%)
HSV	hsv(194, 68%, 81%)
CMYK	cmyk(68%, 16%, 0%, 19.2%)
CIE-LAB	lab(66.13, -20.05, -25.69)
CIE-LCH	lch(66.13, 32.59, 232.04°)
OKLab	oklab(69.99% -0.0795 -0.0717)
OKLCH	oklch(69.99% 0.107 222.1)
XYZ	xyz(28.3264, 35.4985, 63.7396)
Luminance	0.3550 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ADCE #CE6342

analogous

#42CEA9 #42ADCE #4267CE

triadic

#42ADCE #CE42AD #ADCE42

tetradic

#42ADCE #A942CE #CE6342 #67CE42

square

#42ADCE #A942CE #CE6342 #67CE42

split-complementary

#42ADCE #CE4267 #CEA942

monochromatic

#1F6277 #2B8AA7 #42ADCE #73C2DB #A3D7E7

Accessibility & contrast

On white

2.59

#42ADCE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.10

#42ADCE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ADCE

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ADCE	#FFFFFF	#000000	##000000
##42ADCE	1.00	2.59	8.10	8.10
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.10	21.00	1.00	1.00
##000000	8.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA9D0

Deuteranopia (green-blind)

#869BCE

Tritanopia (blue-blind)

#00B7B8

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42adce;
/* rgb */ color: rgb(66, 173, 206);
/* oklch */ color: oklch(70.0% 0.107 222.1);

Tailwind

colors: {
  custom: {
    50: '#87c5dd',
    500: '#42adce',
    950: '#000000',
  },
}

SCSS

$custom: #42adce;
$custom-light: #87c5dd;
$custom-dark: #000000;

JSON

{
  "hex": "#42adce",
  "rgb": {
    "r": 66,
    "g": 173,
    "b": 206
  },
  "hsl": {
    "h": 194.143,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.69991,
    "c": 0.10709,
    "h": 222.1
  },
  "luminance": 0.35502
}

Semantic roles & 50–950 ramp

primary

#42ADCE

secondary

#D4A698

accent

#6B46E2

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #42ADCE

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

Preview Lab → · Contrast checker → · Palette generator →