#42A9D2#42A9D2

#42A9D2 is a light, moderate cyan. Relative luminance 0.342; OKLCH L 69.2% C 0.111 H 228.1°. Best body text is #000000 at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#42A9D2
RGB	rgb(66, 169, 210)
HSL	hsl(197, 62%, 54%)
HSV	hsv(197, 69%, 82%)
CMYK	cmyk(68.6%, 19.5%, 0%, 17.6%)
CIE-LAB	lab(65.11, -16.66, -29.49)
CIE-LCH	lch(65.11, 33.87, 240.53°)
OKLab	oklab(69.22% -0.074 -0.0826)
OKLCH	oklch(69.22% 0.111 228.1)
XYZ	xyz(28.0629, 34.1842, 66.0795)
Luminance	0.3419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A9D2 #D26B42

analogous

#42D2B3 #42A9D2 #4261D2

triadic

#42A9D2 #D242A9 #A9D242

tetradic

#42A9D2 #B342D2 #D26B42 #61D242

square

#42A9D2 #B342D2 #D26B42 #61D242

split-complementary

#42A9D2 #D24261 #D2B342

monochromatic

#1E617C #2988AD #42A9D2 #73BFDE #A5D6EA

Accessibility & contrast

On white

2.68

#42A9D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.84

#42A9D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A9D2

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A9D2	#FFFFFF	#000000	##000000
##42A9D2	1.00	2.68	7.84	7.84
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.84	21.00	1.00	1.00
##000000	7.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A6D4

Deuteranopia (green-blind)

#8098D1

Tritanopia (blue-blind)

#00B5B6

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #42a9d2;
/* rgb */ color: rgb(66, 169, 210);
/* oklch */ color: oklch(69.2% 0.111 228.1);

Tailwind

colors: {
  custom: {
    50: '#87c2e0',
    500: '#42a9d2',
    950: '#000000',
  },
}

SCSS

$custom: #42a9d2;
$custom-light: #87c2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#42a9d2",
  "rgb": {
    "r": 66,
    "g": 169,
    "b": 210
  },
  "hsl": {
    "h": 197.083,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.6922,
    "c": 0.11088,
    "h": 228.1
  },
  "luminance": 0.34187
}

Semantic roles & 50–950 ramp

primary

#42A9D2

secondary

#D7AB99

accent

#7143E5

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A9D2

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

Preview Lab → · Contrast checker → · Palette generator →