#42A8D2#42A8D2

#42A8D2 is a light, moderate cyan. Relative luminance 0.338; OKLCH L 69.0% C 0.111 H 229.0°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#42A8D2
RGB	rgb(66, 168, 210)
HSL	hsl(198, 62%, 54%)
HSV	hsv(198, 69%, 82%)
CMYK	cmyk(68.6%, 20%, 0%, 17.6%)
CIE-LAB	lab(64.81, -16.13, -29.94)
CIE-LCH	lch(64.81, 34.01, 241.69°)
OKLab	oklab(68.99% -0.073 -0.0839)
OKLCH	oklch(68.99% 0.111 229)
XYZ	xyz(27.8776, 33.8136, 66.0177)
Luminance	0.3382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A8D2 #D26C42

analogous

#42D2B4 #42A8D2 #4260D2

triadic

#42A8D2 #D242A8 #A8D242

tetradic

#42A8D2 #B442D2 #D26C42 #60D242

square

#42A8D2 #B442D2 #D26C42 #60D242

split-complementary

#42A8D2 #D24260 #D2B442

monochromatic

#1E607C #2987AD #42A8D2 #73BFDE #A5D6EA

Accessibility & contrast

On white

2.71

#42A8D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#42A8D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A8D2

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A8D2	#FFFFFF	#000000	##000000
##42A8D2	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A5D4

Deuteranopia (green-blind)

#7E97D1

Tritanopia (blue-blind)

#00B4B6

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #42a8d2;
/* rgb */ color: rgb(66, 168, 210);
/* oklch */ color: oklch(69.0% 0.111 229.0);

Tailwind

colors: {
  custom: {
    50: '#87c1e0',
    500: '#42a8d2',
    950: '#000000',
  },
}

SCSS

$custom: #42a8d2;
$custom-light: #87c1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#42a8d2",
  "rgb": {
    "r": 66,
    "g": 168,
    "b": 210
  },
  "hsl": {
    "h": 197.5,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.68985,
    "c": 0.1112,
    "h": 229
  },
  "luminance": 0.33817
}

Semantic roles & 50–950 ramp

primary

#42A8D2

secondary

#D7AB99

accent

#7243E5

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A8D2

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

Preview Lab → · Contrast checker → · Palette generator →