#42A0D5#42A0D5

#42A0D5 is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.3% C 0.118 H 237.0°. Best body text is #000000 at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#42A0D5
RGB	rgb(66, 160, 213)
HSL	hsl(202, 64%, 55%)
HSV	hsv(202, 69%, 84%)
CMYK	cmyk(69%, 24.9%, 0%, 16.5%)
CIE-LAB	lab(62.59, -10.80, -35.05)
CIE-LCH	lch(62.59, 36.68, 252.88°)
OKLab	oklab(67.26% -0.064 -0.0986)
OKLCH	oklch(67.26% 0.118 237)
XYZ	xyz(26.8231, 31.1010, 67.5273)
Luminance	0.3110 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A0D5 #D57742

analogous

#42D5C1 #42A0D5 #4256D5

triadic

#42A0D5 #D542A0 #A0D542

tetradic

#42A0D5 #C142D5 #D57742 #56D542

square

#42A0D5 #C142D5 #D57742 #56D542

split-complementary

#42A0D5 #D54256 #D5C142

monochromatic

#1C5C80 #2880B2 #42A0D5 #74B9E0 #A6D2EB

Accessibility & contrast

On white

2.91

#42A0D5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.22

#42A0D5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A0D5

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A0D5	#FFFFFF	#000000	##000000
##42A0D5	1.00	2.91	7.22	7.22
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.22	21.00	1.00	1.00
##000000	7.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879FD7

Deuteranopia (green-blind)

#7391D4

Tritanopia (blue-blind)

#00AEB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #42a0d5;
/* rgb */ color: rgb(66, 160, 213);
/* oklch */ color: oklch(67.3% 0.118 237.0);

Tailwind

colors: {
  custom: {
    50: '#87bce2',
    500: '#42a0d5',
    950: '#000000',
  },
}

SCSS

$custom: #42a0d5;
$custom-light: #87bce2;
$custom-dark: #000000;

JSON

{
  "hex": "#42a0d5",
  "rgb": {
    "r": 66,
    "g": 160,
    "b": 213
  },
  "hsl": {
    "h": 201.633,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.67257,
    "c": 0.11758,
    "h": 237
  },
  "luminance": 0.31104
}

Semantic roles & 50–950 ramp

primary

#42A0D5

secondary

#D8B19A

accent

#7D41E7

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42A0D5

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

Preview Lab → · Contrast checker → · Palette generator →