#42AFD5#42AFD5

#42AFD5 is a light, moderate cyan. Relative luminance 0.366; OKLCH L 70.8% C 0.112 H 225.0°. Best body text is #000000 at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#42AFD5
RGB	rgb(66, 175, 213)
HSL	hsl(196, 64%, 55%)
HSV	hsv(196, 69%, 84%)
CMYK	cmyk(69%, 17.8%, 0%, 16.5%)
CIE-LAB	lab(66.99, -18.87, -28.24)
CIE-LCH	lch(66.99, 33.97, 236.25°)
OKLab	oklab(70.76% -0.0789 -0.079)
OKLCH	oklch(70.76% 0.112 225)
XYZ	xyz(29.5821, 36.6190, 68.4470)
Luminance	0.3662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFD5 #D56842

analogous

#42D5B1 #42AFD5 #4266D5

triadic

#42AFD5 #D542AF #AFD542

tetradic

#42AFD5 #B142D5 #D56842 #66D542

square

#42AFD5 #B142D5 #D56842 #66D542

split-complementary

#42AFD5 #D54266 #D5B142

monochromatic

#1C6680 #288EB2 #42AFD5 #74C4E0 #A6D9EB

Accessibility & contrast

On white

2.52

#42AFD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.32

#42AFD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFD5

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFD5	#FFFFFF	#000000	##000000
##42AFD5	1.00	2.52	8.32	8.32
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.32	21.00	1.00	1.00
##000000	8.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AABD7

Deuteranopia (green-blind)

#869DD5

Tritanopia (blue-blind)

#00BABB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #42afd5;
/* rgb */ color: rgb(66, 175, 213);
/* oklch */ color: oklch(70.8% 0.112 225.0);

Tailwind

colors: {
  custom: {
    50: '#88c7e2',
    500: '#42afd5',
    950: '#000000',
  },
}

SCSS

$custom: #42afd5;
$custom-light: #88c7e2;
$custom-dark: #000000;

JSON

{
  "hex": "#42afd5",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 213
  },
  "hsl": {
    "h": 195.51,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.70763,
    "c": 0.11164,
    "h": 225
  },
  "luminance": 0.36622
}

Semantic roles & 50–950 ramp

primary

#42AFD5

secondary

#D8AA9A

accent

#6C41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42AFD5

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

Preview Lab → · Contrast checker → · Palette generator →