#42B2D2#42B2D2

#42B2D2 is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.3% C 0.109 H 220.5°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#42B2D2
RGB	rgb(66, 178, 210)
HSL	hsl(193, 62%, 54%)
HSV	hsv(193, 69%, 82%)
CMYK	cmyk(68.6%, 15.2%, 0%, 17.6%)
CIE-LAB	lab(67.76, -21.38, -25.41)
CIE-LCH	lch(67.76, 33.21, 229.91°)
OKLab	oklab(71.34% -0.083 -0.0709)
OKLCH	oklch(71.34% 0.109 220.5)
XYZ	xyz(29.7952, 37.6488, 66.6569)
Luminance	0.3765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B2D2 #D26242

analogous

#42D2AA #42B2D2 #426AD2

triadic

#42B2D2 #D242B2 #B2D242

tetradic

#42B2D2 #AA42D2 #D26242 #6AD242

square

#42B2D2 #AA42D2 #D26242 #6AD242

split-complementary

#42B2D2 #D2426A #D2AA42

monochromatic

#1E677C #2990AD #42B2D2 #73C6DE #A5DAEA

Accessibility & contrast

On white

2.46

#42B2D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#42B2D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B2D2

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B2D2	#FFFFFF	#000000	##000000
##42B2D2	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FADD4

Deuteranopia (green-blind)

#8B9FD2

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #42b2d2;
/* rgb */ color: rgb(66, 178, 210);
/* oklch */ color: oklch(71.3% 0.109 220.5);

Tailwind

colors: {
  custom: {
    50: '#88c9df',
    500: '#42b2d2',
    950: '#000000',
  },
}

SCSS

$custom: #42b2d2;
$custom-light: #88c9df;
$custom-dark: #000000;

JSON

{
  "hex": "#42b2d2",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 210
  },
  "hsl": {
    "h": 193.333,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.71344,
    "c": 0.10917,
    "h": 220.5
  },
  "luminance": 0.37652
}

Semantic roles & 50–950 ramp

primary

#42B2D2

secondary

#D7A799

accent

#6743E5

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B2D2

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

Preview Lab → · Contrast checker → · Palette generator →