#42B6DA#42B6DA

#42B6DA is a light, moderate cyan. Relative luminance 0.397; OKLCH L 72.6% C 0.114 H 222.5°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#42B6DA
RGB	rgb(66, 182, 218)
HSL	hsl(194, 67%, 56%)
HSV	hsv(194, 70%, 85%)
CMYK	cmyk(69.7%, 16.5%, 0%, 14.5%)
CIE-LAB	lab(69.24, -20.93, -27.53)
CIE-LCH	lch(69.24, 34.58, 232.76°)
OKLab	oklab(72.63% -0.084 -0.0769)
OKLCH	oklch(72.63% 0.114 222.5)
XYZ	xyz(31.6244, 39.6725, 72.3069)
Luminance	0.3968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B6DA #DA6642

analogous

#42DAB2 #42B6DA #426ADA

triadic

#42B6DA #DA42B6 #B6DA42

tetradic

#42B6DA #B242DA #DA6642 #6ADA42

square

#42B6DA #B242DA #DA6642 #6ADA42

split-complementary

#42B6DA #DA426A #DAB242

monochromatic

#1A6D87 #2497BA #42B6DA #75CAE4 #A8DEEE

Accessibility & contrast

On white

2.35

#42B6DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#42B6DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B6DA

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B6DA	#FFFFFF	#000000	##000000
##42B6DA	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DC

Deuteranopia (green-blind)

#8CA2DA

Tritanopia (blue-blind)

#00C1C2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #42b6da;
/* rgb */ color: rgb(66, 182, 218);
/* oklch */ color: oklch(72.6% 0.114 222.5);

Tailwind

colors: {
  custom: {
    50: '#89cce5',
    500: '#42b6da',
    950: '#000000',
  },
}

SCSS

$custom: #42b6da;
$custom-light: #89cce5;
$custom-dark: #000000;

JSON

{
  "hex": "#42b6da",
  "rgb": {
    "r": 66,
    "g": 182,
    "b": 218
  },
  "hsl": {
    "h": 194.211,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.72625,
    "c": 0.11389,
    "h": 222.5
  },
  "luminance": 0.39676
}

Semantic roles & 50–950 ramp

primary

#42B6DA

secondary

#DBAB9C

accent

#673EEA

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1315

muted

#7E8284

Preview Lab

Preview with #42B6DA

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

Preview Lab → · Contrast checker → · Palette generator →