#42ACD0#42ACD0

#42ACD0 is a light, moderate cyan. Relative luminance 0.352; OKLCH L 69.8% C 0.109 H 224.3°. Best body text is #000000 at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#42ACD0
RGB	rgb(66, 172, 208)
HSL	hsl(195, 60%, 54%)
HSV	hsv(195, 68%, 82%)
CMYK	cmyk(68.3%, 17.3%, 0%, 18.4%)
CIE-LAB	lab(65.92, -18.89, -27.14)
CIE-LCH	lch(65.92, 33.07, 235.16°)
OKLab	oklab(69.84% -0.0777 -0.0758)
OKLCH	oklch(69.84% 0.109 224.3)
XYZ	xyz(28.3798, 35.2142, 64.9636)
Luminance	0.3522 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACD0 #D06642

analogous

#42D0AD #42ACD0 #4265D0

triadic

#42ACD0 #D042AC #ACD042

tetradic

#42ACD0 #AD42D0 #D06642 #65D042

square

#42ACD0 #AD42D0 #D06642 #65D042

split-complementary

#42ACD0 #D04265 #D0AD42

monochromatic

#1E6279 #2A8AAA #42ACD0 #73C2DC #A4D7E8

Accessibility & contrast

On white

2.61

#42ACD0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.04

#42ACD0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACD0

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACD0	#FFFFFF	#000000	##000000
##42ACD0	1.00	2.61	8.04	8.04
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.04	21.00	1.00	1.00
##000000	8.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A8D2

Deuteranopia (green-blind)

#849AD0

Tritanopia (blue-blind)

#00B7B8

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #42acd0;
/* rgb */ color: rgb(66, 172, 208);
/* oklch */ color: oklch(69.8% 0.109 224.3);

Tailwind

colors: {
  custom: {
    50: '#87c4de',
    500: '#42acd0',
    950: '#000000',
  },
}

SCSS

$custom: #42acd0;
$custom-light: #87c4de;
$custom-dark: #000000;

JSON

{
  "hex": "#42acd0",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 208
  },
  "hsl": {
    "h": 195.211,
    "s": 60.169,
    "l": 53.725
  },
  "oklch": {
    "l": 0.6984,
    "c": 0.10861,
    "h": 224.3
  },
  "luminance": 0.35217
}

Semantic roles & 50–950 ramp

primary

#42ACD0

secondary

#D5A899

accent

#6D44E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1215

muted

#7D8183

Preview Lab

Preview with #42ACD0

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

Preview Lab → · Contrast checker → · Palette generator →