#42A0CD#42A0CD

#42A0CD is a light, moderate cyan. Relative luminance 0.307; OKLCH L 66.9% C 0.110 H 232.6°. Best body text is #000000 at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#42A0CD
RGB	rgb(66, 160, 205)
HSL	hsl(199, 58%, 53%)
HSV	hsv(199, 68%, 80%)
CMYK	cmyk(67.8%, 22%, 0%, 19.6%)
CIE-LAB	lab(62.26, -13.44, -31.12)
CIE-LCH	lch(62.26, 33.90, 246.64°)
OKLab	oklab(66.88% -0.0667 -0.0873)
OKLCH	oklch(66.88% 0.11 232.6)
XYZ	xyz(25.8327, 30.7048, 62.3110)
Luminance	0.3071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A0CD #CD6F42

analogous

#42CDB4 #42A0CD #425BCD

triadic

#42A0CD #CD42A0 #A0CD42

tetradic

#42A0CD #B442CD #CD6F42 #5BCD42

square

#42A0CD #B442CD #CD6F42 #5BCD42

split-complementary

#42A0CD #CD425B #CDB442

monochromatic

#1F5A76 #2C7EA6 #42A0CD #72B8DA #A3D1E7

Accessibility & contrast

On white

2.94

#42A0CD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.14

#42A0CD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A0CD

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A0CD	#FFFFFF	#000000	##000000
##42A0CD	1.00	2.94	7.14	7.14
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.14	21.00	1.00	1.00
##000000	7.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9ECF

Deuteranopia (green-blind)

#7790CC

Tritanopia (blue-blind)

#00ACAF

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #42a0cd;
/* rgb */ color: rgb(66, 160, 205);
/* oklch */ color: oklch(66.9% 0.110 232.6);

Tailwind

colors: {
  custom: {
    50: '#86bcdc',
    500: '#42a0cd',
    950: '#000000',
  },
}

SCSS

$custom: #42a0cd;
$custom-light: #86bcdc;
$custom-dark: #000000;

JSON

{
  "hex": "#42a0cd",
  "rgb": {
    "r": 66,
    "g": 160,
    "b": 205
  },
  "hsl": {
    "h": 199.424,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.6688,
    "c": 0.10989,
    "h": 232.6
  },
  "luminance": 0.30708
}

Semantic roles & 50–950 ramp

primary

#42A0CD

secondary

#D3AB97

accent

#7946E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #42A0CD

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

Preview Lab → · Contrast checker → · Palette generator →