#42A6DB#42A6DB

#42A6DB is a light, vivid cyan. Relative luminance 0.335; OKLCH L 68.9% C 0.120 H 235.6°. Best body text is #000000 at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#42A6DB
RGB	rgb(66, 166, 219)
HSL	hsl(201, 68%, 56%)
HSV	hsv(201, 70%, 86%)
CMYK	cmyk(69.9%, 24.2%, 0%, 14.1%)
CIE-LAB	lab(64.60, -12.10, -35.26)
CIE-LCH	lch(64.60, 37.27, 251.06°)
OKLab	oklab(68.93% -0.0679 -0.0992)
OKLCH	oklch(68.93% 0.12 235.6)
XYZ	xyz(28.6641, 33.5420, 71.9677)
Luminance	0.3355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A6DB #DB7742

analogous

#42DBC3 #42A6DB #4259DB

triadic

#42A6DB #DB42A6 #A6DB42

tetradic

#42A6DB #C342DB #DB7742 #59DB42

square

#42A6DB #C342DB #DB7742 #59DB42

split-complementary

#42A6DB #DB4259 #DBC342

monochromatic

#1A6289 #2487BC #42A6DB #75BEE5 #A9D6EF

Accessibility & contrast

On white

2.72

#42A6DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.71

#42A6DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A6DB

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A6DB	#FFFFFF	#000000	##000000
##42A6DB	1.00	2.72	7.71	7.71
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.71	21.00	1.00	1.00
##000000	7.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA5DD

Deuteranopia (green-blind)

#7896DA

Tritanopia (blue-blind)

#00B4B8

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #42a6db;
/* rgb */ color: rgb(66, 166, 219);
/* oklch */ color: oklch(68.9% 0.120 235.6);

Tailwind

colors: {
  custom: {
    50: '#88c0e6',
    500: '#42a6db',
    950: '#000000',
  },
}

SCSS

$custom: #42a6db;
$custom-light: #88c0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#42a6db",
  "rgb": {
    "r": 66,
    "g": 166,
    "b": 219
  },
  "hsl": {
    "h": 200.784,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.68934,
    "c": 0.12019,
    "h": 235.6
  },
  "luminance": 0.33545
}

Semantic roles & 50–950 ramp

primary

#42A6DB

secondary

#DCB39D

accent

#793DEB

background

#F9FBFE

surface

#F1F7FC

border

#CBD0D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #42A6DB

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

Preview Lab → · Contrast checker → · Palette generator →