#42A0D4#42A0D4

#42A0D4 is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.2% C 0.117 H 236.5°. Best body text is #000000 at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#42A0D4
RGB	rgb(66, 160, 212)
HSL	hsl(201, 63%, 55%)
HSV	hsv(201, 69%, 83%)
CMYK	cmyk(68.9%, 24.5%, 0%, 16.9%)
CIE-LAB	lab(62.55, -11.13, -34.56)
CIE-LCH	lch(62.55, 36.31, 252.15°)
OKLab	oklab(67.21% -0.0643 -0.0972)
OKLCH	oklch(67.21% 0.117 236.5)
XYZ	xyz(26.6966, 31.0504, 66.8609)
Luminance	0.3105 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A0D4 #D47642

analogous

#42D4BF #42A0D4 #4257D4

triadic

#42A0D4 #D442A0 #A0D442

tetradic

#42A0D4 #BF42D4 #D47642 #57D442

square

#42A0D4 #BF42D4 #D47642 #57D442

split-complementary

#42A0D4 #D44257 #D4BF42

monochromatic

#1D5C7F #2880B1 #42A0D4 #74B9DF #A6D2EB

Accessibility & contrast

On white

2.91

#42A0D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.21

#42A0D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A0D4

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A0D4	#FFFFFF	#000000	##000000
##42A0D4	1.00	2.91	7.21	7.21
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.21	21.00	1.00	1.00
##000000	7.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879FD6

Deuteranopia (green-blind)

#7391D3

Tritanopia (blue-blind)

#00ADB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #42a0d4;
/* rgb */ color: rgb(66, 160, 212);
/* oklch */ color: oklch(67.2% 0.117 236.5);

Tailwind

colors: {
  custom: {
    50: '#87bce1',
    500: '#42a0d4',
    950: '#000000',
  },
}

SCSS

$custom: #42a0d4;
$custom-light: #87bce1;
$custom-dark: #000000;

JSON

{
  "hex": "#42a0d4",
  "rgb": {
    "r": 66,
    "g": 160,
    "b": 212
  },
  "hsl": {
    "h": 201.37,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.67209,
    "c": 0.11658,
    "h": 236.5
  },
  "luminance": 0.31053
}

Semantic roles & 50–950 ramp

primary

#42A0D4

secondary

#D8B09A

accent

#7C42E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A0D4

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

Preview Lab → · Contrast checker → · Palette generator →