#42AADB#42AADB

#42AADB is a light, moderate cyan. Relative luminance 0.350; OKLCH L 69.9% C 0.118 H 232.6°. Best body text is #000000 at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#42AADB
RGB	rgb(66, 170, 219)
HSL	hsl(199, 68%, 56%)
HSV	hsv(199, 70%, 86%)
CMYK	cmyk(69.9%, 22.4%, 0%, 14.1%)
CIE-LAB	lab(65.76, -14.27, -33.44)
CIE-LCH	lch(65.76, 36.36, 246.89°)
OKLab	oklab(69.86% -0.0718 -0.0939)
OKLCH	oklch(69.86% 0.118 232.6)
XYZ	xyz(29.4026, 35.0189, 72.2138)
Luminance	0.3502 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AADB #DB7342

analogous

#42DBC0 #42AADB #425DDB

triadic

#42AADB #DB42AA #AADB42

tetradic

#42AADB #C042DB #DB7342 #5DDB42

square

#42AADB #C042DB #DB7342 #5DDB42

split-complementary

#42AADB #DB425D #DBC042

monochromatic

#1A6589 #248BBC #42AADB #75C1E5 #A9D8EF

Accessibility & contrast

On white

2.62

#42AADB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.00

#42AADB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AADB

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AADB	#FFFFFF	#000000	##000000
##42AADB	1.00	2.62	8.00	8.00
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.00	21.00	1.00	1.00
##000000	8.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92A8DD

Deuteranopia (green-blind)

#7D99DA

Tritanopia (blue-blind)

#00B7BA

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #42aadb;
/* rgb */ color: rgb(66, 170, 219);
/* oklch */ color: oklch(69.9% 0.118 232.6);

Tailwind

colors: {
  custom: {
    50: '#88c3e6',
    500: '#42aadb',
    950: '#000000',
  },
}

SCSS

$custom: #42aadb;
$custom-light: #88c3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42aadb",
  "rgb": {
    "r": 66,
    "g": 170,
    "b": 219
  },
  "hsl": {
    "h": 199.216,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.69862,
    "c": 0.11823,
    "h": 232.6
  },
  "luminance": 0.35022
}

Semantic roles & 50–950 ramp

primary

#42AADB

secondary

#DCB19D

accent

#753DEB

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #42AADB

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

Preview Lab → · Contrast checker → · Palette generator →