#42AED4#42AED4

#42AED4 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.5% C 0.111 H 225.2°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#42AED4
RGB	rgb(66, 174, 212)
HSL	hsl(196, 63%, 55%)
HSV	hsv(196, 69%, 83%)
CMYK	cmyk(68.9%, 17.9%, 0%, 16.9%)
CIE-LAB	lab(66.66, -18.67, -28.20)
CIE-LCH	lch(66.66, 33.82, 236.50°)
OKLab	oklab(70.49% -0.0783 -0.0789)
OKLCH	oklch(70.49% 0.111 225.2)
XYZ	xyz(29.2617, 36.1805, 67.7160)
Luminance	0.3618 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AED4 #D46842

analogous

#42D4B1 #42AED4 #4265D4

triadic

#42AED4 #D442AE #AED442

tetradic

#42AED4 #B142D4 #D46842 #65D442

square

#42AED4 #B142D4 #D46842 #65D442

split-complementary

#42AED4 #D44265 #D4B142

monochromatic

#1D657F #288DB1 #42AED4 #74C3DF #A6D9EB

Accessibility & contrast

On white

2.55

#42AED4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#42AED4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AED4

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AED4	#FFFFFF	#000000	##000000
##42AED4	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99AAD6

Deuteranopia (green-blind)

#859CD4

Tritanopia (blue-blind)

#00B9BA

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42aed4;
/* rgb */ color: rgb(66, 174, 212);
/* oklch */ color: oklch(70.5% 0.111 225.2);

Tailwind

colors: {
  custom: {
    50: '#88c6e1',
    500: '#42aed4',
    950: '#000000',
  },
}

SCSS

$custom: #42aed4;
$custom-light: #88c6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#42aed4",
  "rgb": {
    "r": 66,
    "g": 174,
    "b": 212
  },
  "hsl": {
    "h": 195.616,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.70485,
    "c": 0.11112,
    "h": 225.2
  },
  "luminance": 0.36184
}

Semantic roles & 50–950 ramp

primary

#42AED4

secondary

#D8AA9A

accent

#6D42E6

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #42AED4

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

Preview Lab → · Contrast checker → · Palette generator →