#42ACD6#42ACD6

#42ACD6 is a light, moderate cyan. Relative luminance 0.355; OKLCH L 70.1% C 0.113 H 228.1°. Best body text is #000000 at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#42ACD6
RGB	rgb(66, 172, 214)
HSL	hsl(197, 64%, 55%)
HSV	hsv(197, 69%, 84%)
CMYK	cmyk(69.2%, 19.6%, 0%, 16.1%)
CIE-LAB	lab(66.15, -16.97, -30.09)
CIE-LCH	lch(66.15, 34.55, 240.58°)
OKLab	oklab(70.1% -0.0755 -0.0843)
OKLCH	oklch(70.1% 0.113 228.1)
XYZ	xyz(29.1320, 35.5151, 68.9251)
Luminance	0.3552 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ACD6 #D66C42

analogous

#42D6B6 #42ACD6 #4262D6

triadic

#42ACD6 #D642AC #ACD642

tetradic

#42ACD6 #B642D6 #D66C42 #62D642

square

#42ACD6 #B642D6 #D66C42 #62D642

split-complementary

#42ACD6 #D64262 #D6B642

monochromatic

#1C6582 #278CB4 #42ACD6 #74C2E1 #A7D8EC

Accessibility & contrast

On white

2.59

#42ACD6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.10

#42ACD6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ACD6

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ACD6	#FFFFFF	#000000	##000000
##42ACD6	1.00	2.59	8.10	8.10
#FFFFFF	2.59	1.00	21.00	21.00
#000000	8.10	21.00	1.00	1.00
##000000	8.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A9D8

Deuteranopia (green-blind)

#829AD5

Tritanopia (blue-blind)

#00B8BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42acd6;
/* rgb */ color: rgb(66, 172, 214);
/* oklch */ color: oklch(70.1% 0.113 228.1);

Tailwind

colors: {
  custom: {
    50: '#88c4e2',
    500: '#42acd6',
    950: '#000000',
  },
}

SCSS

$custom: #42acd6;
$custom-light: #88c4e2;
$custom-dark: #000000;

JSON

{
  "hex": "#42acd6",
  "rgb": {
    "r": 66,
    "g": 172,
    "b": 214
  },
  "hsl": {
    "h": 197.027,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.70103,
    "c": 0.11319,
    "h": 228.1
  },
  "luminance": 0.35518
}

Semantic roles & 50–950 ramp

primary

#42ACD6

secondary

#D9AC9B

accent

#7040E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #42ACD6

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

Preview Lab → · Contrast checker → · Palette generator →