#42B2D3#42B2D3

#42B2D3 is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.4% C 0.110 H 221.2°. Best body text is #000000 at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#42B2D3
RGB	rgb(66, 178, 211)
HSL	hsl(194, 62%, 54%)
HSV	hsv(194, 69%, 83%)
CMYK	cmyk(68.7%, 15.6%, 0%, 17.3%)
CIE-LAB	lab(67.80, -21.07, -25.90)
CIE-LCH	lch(67.80, 33.39, 230.87°)
OKLab	oklab(71.39% -0.0826 -0.0723)
OKLCH	oklch(71.39% 0.11 221.2)
XYZ	xyz(29.9202, 37.6988, 67.3151)
Luminance	0.3770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B2D3 #D36342

analogous

#42D3AC #42B2D3 #426AD3

triadic

#42B2D3 #D342B2 #B2D342

tetradic

#42B2D3 #AC42D3 #D36342 #6AD342

square

#42B2D3 #AC42D3 #D36342 #6AD342

split-complementary

#42B2D3 #D3426A #D3AC42

monochromatic

#1D687D #2990AF #42B2D3 #74C6DF #A5DAEA

Accessibility & contrast

On white

2.46

#42B2D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.54

#42B2D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B2D3

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B2D3	#FFFFFF	#000000	##000000
##42B2D3	1.00	2.46	8.54	8.54
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.54	21.00	1.00	1.00
##000000	8.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EAED5

Deuteranopia (green-blind)

#8A9FD3

Tritanopia (blue-blind)

#00BDBD

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42b2d3;
/* rgb */ color: rgb(66, 178, 211);
/* oklch */ color: oklch(71.4% 0.110 221.2);

Tailwind

colors: {
  custom: {
    50: '#88c9e0',
    500: '#42b2d3',
    950: '#000000',
  },
}

SCSS

$custom: #42b2d3;
$custom-light: #88c9e0;
$custom-dark: #000000;

JSON

{
  "hex": "#42b2d3",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 211
  },
  "hsl": {
    "h": 193.655,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.71386,
    "c": 0.1098,
    "h": 221.2
  },
  "luminance": 0.37702
}

Semantic roles & 50–950 ramp

primary

#42B2D3

secondary

#D7A89A

accent

#6842E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B2D3

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

Preview Lab → · Contrast checker → · Palette generator →