#42AEC4#42AEC4

#42AEC4 is a light, moderate cyan. Relative luminance 0.354; OKLCH L 69.8% C 0.102 H 213.7°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#42AEC4
RGB	rgb(66, 174, 196)
HSL	hsl(190, 52%, 51%)
HSV	hsv(190, 66%, 77%)
CMYK	cmyk(66.3%, 11.2%, 0%, 23.1%)
CIE-LAB	lab(66.07, -23.68, -20.26)
CIE-LCH	lch(66.07, 31.16, 220.56°)
OKLab	oklab(69.82% -0.0844 -0.0563)
OKLCH	oklch(69.82% 0.102 213.7)
XYZ	xyz(27.3425, 35.4129, 57.6082)
Luminance	0.3542 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AEC4 #C45842

analogous

#42C499 #42AEC4 #426DC4

triadic

#42AEC4 #C442AE #AEC442

tetradic

#42AEC4 #9942C4 #C45842 #6DC442

square

#42AEC4 #9942C4 #C45842 #6DC442

split-complementary

#42AEC4 #C4426D #C49942

monochromatic

#215E6A #308799 #42AEC4 #71C2D3 #9FD6E1

Accessibility & contrast

On white

2.60

#42AEC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#42AEC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AEC4

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AEC4	#FFFFFF	#000000	##000000
##42AEC4	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EA8C5

Deuteranopia (green-blind)

#8B9BC4

Tritanopia (blue-blind)

#00B7B5

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #42aec4;
/* rgb */ color: rgb(66, 174, 196);
/* oklch */ color: oklch(69.8% 0.102 213.7);

Tailwind

colors: {
  custom: {
    50: '#86c6d5',
    500: '#42aec4',
    950: '#000000',
  },
}

SCSS

$custom: #42aec4;
$custom-light: #86c6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#42aec4",
  "rgb": {
    "r": 66,
    "g": 174,
    "b": 196
  },
  "hsl": {
    "h": 190.154,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.69817,
    "c": 0.10151,
    "h": 213.7
  },
  "luminance": 0.35416
}

Semantic roles & 50–950 ramp

primary

#42AEC4

secondary

#CE9E94

accent

#644CDC

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #42AEC4

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

Preview Lab → · Contrast checker → · Palette generator →