#42ADCD#42ADCD

#42ADCD is a light, moderate cyan. Relative luminance 0.355; OKLCH L 69.9% C 0.106 H 221.4°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#42ADCD
RGB	rgb(66, 173, 205)
HSL	hsl(194, 58%, 53%)
HSV	hsv(194, 68%, 80%)
CMYK	cmyk(67.8%, 15.6%, 0%, 19.6%)
CIE-LAB	lab(66.10, -20.36, -25.20)
CIE-LCH	lch(66.10, 32.40, 231.06°)
OKLab	oklab(69.95% -0.0799 -0.0703)
OKLCH	oklch(69.95% 0.106 221.4)
XYZ	xyz(28.2053, 35.4500, 63.1018)
Luminance	0.3545 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ADCD #CD6242

analogous

#42CDA7 #42ADCD #4267CD

triadic

#42ADCD #CD42AD #ADCD42

tetradic

#42ADCD #A742CD #CD6242 #67CD42

square

#42ADCD #A742CD #CD6242 #67CD42

split-complementary

#42ADCD #CD4267 #CDA742

monochromatic

#1F6276 #2C8AA6 #42ADCD #72C2DA #A3D7E7

Accessibility & contrast

On white

2.60

#42ADCD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#42ADCD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ADCD

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ADCD	#FFFFFF	#000000	##000000
##42ADCD	1.00	2.60	8.09	8.09
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA9CF

Deuteranopia (green-blind)

#879ACD

Tritanopia (blue-blind)

#00B7B7

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42adcd;
/* rgb */ color: rgb(66, 173, 205);
/* oklch */ color: oklch(69.9% 0.106 221.4);

Tailwind

colors: {
  custom: {
    50: '#87c5dc',
    500: '#42adcd',
    950: '#000000',
  },
}

SCSS

$custom: #42adcd;
$custom-light: #87c5dc;
$custom-dark: #000000;

JSON

{
  "hex": "#42adcd",
  "rgb": {
    "r": 66,
    "g": 173,
    "b": 205
  },
  "hsl": {
    "h": 193.813,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.69948,
    "c": 0.10644,
    "h": 221.4
  },
  "luminance": 0.35453
}

Semantic roles & 50–950 ramp

primary

#42ADCD

secondary

#D3A597

accent

#6A46E1

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #42ADCD

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

Preview Lab → · Contrast checker → · Palette generator →