#42B0D4#42B0D4

#42B0D4 is a light, moderate cyan. Relative luminance 0.370; OKLCH L 71.0% C 0.111 H 223.5°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#42B0D4
RGB	rgb(66, 176, 212)
HSL	hsl(195, 63%, 55%)
HSV	hsv(195, 69%, 83%)
CMYK	cmyk(68.9%, 17%, 0%, 16.9%)
CIE-LAB	lab(67.25, -19.71, -27.30)
CIE-LCH	lch(67.25, 33.67, 234.16°)
OKLab	oklab(70.96% -0.0803 -0.0763)
OKLCH	oklch(70.96% 0.111 223.5)
XYZ	xyz(29.6509, 36.9591, 67.8457)
Luminance	0.3696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B0D4 #D46642

analogous

#42D4AF #42B0D4 #4267D4

triadic

#42B0D4 #D442B0 #B0D442

tetradic

#42B0D4 #AF42D4 #D46642 #67D442

square

#42B0D4 #AF42D4 #D46642 #67D442

split-complementary

#42B0D4 #D44267 #D4AF42

monochromatic

#1D677F #288FB1 #42B0D4 #74C5DF #A6DAEB

Accessibility & contrast

On white

2.50

#42B0D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#42B0D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B0D4

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B0D4	#FFFFFF	#000000	##000000
##42B0D4	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CACD6

Deuteranopia (green-blind)

#879DD4

Tritanopia (blue-blind)

#00BBBC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #42b0d4;
/* rgb */ color: rgb(66, 176, 212);
/* oklch */ color: oklch(71.0% 0.111 223.5);

Tailwind

colors: {
  custom: {
    50: '#88c7e1',
    500: '#42b0d4',
    950: '#000000',
  },
}

SCSS

$custom: #42b0d4;
$custom-light: #88c7e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42b0d4",
  "rgb": {
    "r": 66,
    "g": 176,
    "b": 212
  },
  "hsl": {
    "h": 194.795,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.70956,
    "c": 0.11073,
    "h": 223.5
  },
  "luminance": 0.36962
}

Semantic roles & 50–950 ramp

primary

#42B0D4

secondary

#D8A99A

accent

#6A42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B0D4

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

Preview Lab → · Contrast checker → · Palette generator →