#42B6D8#42B6D8

#42B6D8 is a light, moderate cyan. Relative luminance 0.396; OKLCH L 72.5% C 0.113 H 221.2°. Best body text is #000000 at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#42B6D8
RGB	rgb(66, 182, 216)
HSL	hsl(194, 66%, 55%)
HSV	hsv(194, 69%, 85%)
CMYK	cmyk(69.4%, 15.7%, 0%, 15.3%)
CIE-LAB	lab(69.16, -21.56, -26.55)
CIE-LCH	lch(69.16, 34.20, 230.93°)
OKLab	oklab(72.54% -0.0847 -0.0741)
OKLCH	oklch(72.54% 0.113 221.2)
XYZ	xyz(31.3643, 39.5685, 70.9369)
Luminance	0.3957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B6D8 #D86442

analogous

#42D8AF #42B6D8 #426BD8

triadic

#42B6D8 #D842B6 #B6D842

tetradic

#42B6D8 #AF42D8 #D86442 #6BD842

square

#42B6D8 #AF42D8 #D86442 #6BD842

split-complementary

#42B6D8 #D8426B #D8AF42

monochromatic

#1B6C84 #2696B7 #42B6D8 #75CAE2 #A7DDED

Accessibility & contrast

On white

2.36

#42B6D8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.91

#42B6D8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B6D8

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B6D8	#FFFFFF	#000000	##000000
##42B6D8	1.00	2.36	8.91	8.91
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.91	21.00	1.00	1.00
##000000	8.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B1DA

Deuteranopia (green-blind)

#8DA2D8

Tritanopia (blue-blind)

#00C1C1

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b6d8;
/* rgb */ color: rgb(66, 182, 216);
/* oklch */ color: oklch(72.5% 0.113 221.2);

Tailwind

colors: {
  custom: {
    50: '#89cce4',
    500: '#42b6d8',
    950: '#000000',
  },
}

SCSS

$custom: #42b6d8;
$custom-light: #89cce4;
$custom-dark: #000000;

JSON

{
  "hex": "#42b6d8",
  "rgb": {
    "r": 66,
    "g": 182,
    "b": 216
  },
  "hsl": {
    "h": 193.6,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.7254,
    "c": 0.11259,
    "h": 221.2
  },
  "luminance": 0.39572
}

Semantic roles & 50–950 ramp

primary

#42B6D8

secondary

#DAAA9C

accent

#663FE9

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B6D8

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

Preview Lab → · Contrast checker → · Palette generator →