#42AED5#42AED5

#42AED5 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.5% C 0.112 H 225.9°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#42AED5
RGB	rgb(66, 174, 213)
HSL	hsl(196, 64%, 55%)
HSV	hsv(196, 69%, 84%)
CMYK	cmyk(69%, 18.3%, 0%, 16.5%)
CIE-LAB	lab(66.70, -18.35, -28.69)
CIE-LCH	lch(66.70, 34.06, 237.41°)
OKLab	oklab(70.53% -0.0779 -0.0803)
OKLCH	oklch(70.53% 0.112 225.9)
XYZ	xyz(29.3882, 36.2312, 68.3824)
Luminance	0.3623 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AED5 #D56942

analogous

#42D5B2 #42AED5 #4265D5

triadic

#42AED5 #D542AE #AED542

tetradic

#42AED5 #B242D5 #D56942 #65D542

square

#42AED5 #B242D5 #D56942 #65D542

split-complementary

#42AED5 #D54265 #D5B242

monochromatic

#1C6680 #288DB2 #42AED5 #74C3E0 #A6D9EB

Accessibility & contrast

On white

2.55

#42AED5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#42AED5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AED5

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AED5	#FFFFFF	#000000	##000000
##42AED5	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ABD7

Deuteranopia (green-blind)

#849CD5

Tritanopia (blue-blind)

#00B9BB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42aed5;
/* rgb */ color: rgb(66, 174, 213);
/* oklch */ color: oklch(70.5% 0.112 225.9);

Tailwind

colors: {
  custom: {
    50: '#88c6e2',
    500: '#42aed5',
    950: '#000000',
  },
}

SCSS

$custom: #42aed5;
$custom-light: #88c6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#42aed5",
  "rgb": {
    "r": 66,
    "g": 174,
    "b": 213
  },
  "hsl": {
    "h": 195.918,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.70528,
    "c": 0.11186,
    "h": 225.9
  },
  "luminance": 0.36234
}

Semantic roles & 50–950 ramp

primary

#42AED5

secondary

#D8AB9A

accent

#6D41E7

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42AED5

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

Preview Lab → · Contrast checker → · Palette generator →