#42A3D2#42A3D2

#42A3D2 is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.8% C 0.113 H 233.1°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#42A3D2
RGB	rgb(66, 163, 210)
HSL	hsl(200, 62%, 54%)
HSV	hsv(200, 69%, 82%)
CMYK	cmyk(68.6%, 22.4%, 0%, 17.6%)
CIE-LAB	lab(63.35, -13.43, -32.22)
CIE-LCH	lch(63.35, 34.90, 247.36°)
OKLab	oklab(67.81% -0.068 -0.0904)
OKLCH	oklch(67.81% 0.113 233.1)
XYZ	xyz(26.9722, 32.0028, 65.7159)
Luminance	0.3201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A3D2 #D27142

analogous

#42D2B9 #42A3D2 #425BD2

triadic

#42A3D2 #D242A3 #A3D242

tetradic

#42A3D2 #B942D2 #D27142 #5BD242

square

#42A3D2 #B942D2 #D27142 #5BD242

split-complementary

#42A3D2 #D2425B #D2B942

monochromatic

#1E5D7C #2982AD #42A3D2 #73BBDE #A5D3EA

Accessibility & contrast

On white

2.84

#42A3D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#42A3D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A3D2

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A3D2	#FFFFFF	#000000	##000000
##42A3D2	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CA1D4

Deuteranopia (green-blind)

#7893D1

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #42a3d2;
/* rgb */ color: rgb(66, 163, 210);
/* oklch */ color: oklch(67.8% 0.113 233.1);

Tailwind

colors: {
  custom: {
    50: '#87bee0',
    500: '#42a3d2',
    950: '#000000',
  },
}

SCSS

$custom: #42a3d2;
$custom-light: #87bee0;
$custom-dark: #000000;

JSON

{
  "hex": "#42a3d2",
  "rgb": {
    "r": 66,
    "g": 163,
    "b": 210
  },
  "hsl": {
    "h": 199.583,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.67814,
    "c": 0.11315,
    "h": 233.1
  },
  "luminance": 0.32006
}

Semantic roles & 50–950 ramp

primary

#42A3D2

secondary

#D7AD99

accent

#7843E5

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A3D2

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

Preview Lab → · Contrast checker → · Palette generator →