#42B2D7#42B2D7

#42B2D7 is a light, moderate cyan. Relative luminance 0.379; OKLCH L 71.6% C 0.112 H 223.8°. Best body text is #000000 at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#42B2D7
RGB	rgb(66, 178, 215)
HSL	hsl(195, 65%, 55%)
HSV	hsv(195, 69%, 84%)
CMYK	cmyk(69.3%, 17.2%, 0%, 15.7%)
CIE-LAB	lab(67.95, -19.80, -27.87)
CIE-LCH	lch(67.95, 34.19, 234.60°)
OKLab	oklab(71.56% -0.0811 -0.0779)
OKLCH	oklch(71.56% 0.112 223.8)
XYZ	xyz(30.4279, 37.9019, 69.9890)
Luminance	0.3790 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42B2D7 #D76742

analogous

#42D7B1 #42B2D7 #4268D7

triadic

#42B2D7 #D742B2 #B2D742

tetradic

#42B2D7 #B142D7 #D76742 #68D742

square

#42B2D7 #B142D7 #D76742 #68D742

split-complementary

#42B2D7 #D74268 #D7B142

monochromatic

#1C6983 #2692B5 #42B2D7 #75C7E2 #A7DBEC

Accessibility & contrast

On white

2.45

#42B2D7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.58

#42B2D7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42B2D7

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42B2D7	#FFFFFF	#000000	##000000
##42B2D7	1.00	2.45	8.58	8.58
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.58	21.00	1.00	1.00
##000000	8.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAED9

Deuteranopia (green-blind)

#899FD7

Tritanopia (blue-blind)

#00BDBE

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #42b2d7;
/* rgb */ color: rgb(66, 178, 215);
/* oklch */ color: oklch(71.6% 0.112 223.8);

Tailwind

colors: {
  custom: {
    50: '#88c9e3',
    500: '#42b2d7',
    950: '#000000',
  },
}

SCSS

$custom: #42b2d7;
$custom-light: #88c9e3;
$custom-dark: #000000;

JSON

{
  "hex": "#42b2d7",
  "rgb": {
    "r": 66,
    "g": 178,
    "b": 215
  },
  "hsl": {
    "h": 194.899,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.71556,
    "c": 0.11248,
    "h": 223.8
  },
  "luminance": 0.37905
}

Semantic roles & 50–950 ramp

primary

#42B2D7

secondary

#DAAB9B

accent

#6A40E8

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42B2D7

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

Preview Lab → · Contrast checker → · Palette generator →