#42A5D6#42A5D6

#42A5D6 is a light, moderate cyan. Relative luminance 0.329; OKLCH L 68.5% C 0.116 H 233.7°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#42A5D6
RGB	rgb(66, 165, 214)
HSL	hsl(200, 64%, 55%)
HSV	hsv(200, 69%, 84%)
CMYK	cmyk(69.2%, 22.9%, 0%, 16.1%)
CIE-LAB	lab(64.10, -13.21, -33.27)
CIE-LCH	lch(64.10, 35.79, 248.35°)
OKLab	oklab(68.47% -0.0686 -0.0935)
OKLCH	oklch(68.47% 0.116 233.7)
XYZ	xyz(27.8347, 32.9205, 68.4926)
Luminance	0.3292 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42A5D6 #D67342

analogous

#42D6BD #42A5D6 #425BD6

triadic

#42A5D6 #D642A5 #A5D642

tetradic

#42A5D6 #BD42D6 #D67342 #5BD642

square

#42A5D6 #BD42D6 #D67342 #5BD642

split-complementary

#42A5D6 #D6425B #D6BD42

monochromatic

#1C6082 #2785B4 #42A5D6 #74BDE1 #A7D5EC

Accessibility & contrast

On white

2.77

#42A5D6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#42A5D6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42A5D6

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42A5D6	#FFFFFF	#000000	##000000
##42A5D6	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8DA4D8

Deuteranopia (green-blind)

#7995D5

Tritanopia (blue-blind)

#00B2B5

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #42a5d6;
/* rgb */ color: rgb(66, 165, 214);
/* oklch */ color: oklch(68.5% 0.116 233.7);

Tailwind

colors: {
  custom: {
    50: '#87bfe2',
    500: '#42a5d6',
    950: '#000000',
  },
}

SCSS

$custom: #42a5d6;
$custom-light: #87bfe2;
$custom-dark: #000000;

JSON

{
  "hex": "#42a5d6",
  "rgb": {
    "r": 66,
    "g": 165,
    "b": 214
  },
  "hsl": {
    "h": 199.865,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.68467,
    "c": 0.11594,
    "h": 233.7
  },
  "luminance": 0.32924
}

Semantic roles & 50–950 ramp

primary

#42A5D6

secondary

#D9AF9B

accent

#7840E7

background

#F9FBFD

surface

#F1F7FB

border

#CBD0D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #42A5D6

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

Preview Lab → · Contrast checker → · Palette generator →