#42ABC4#42ABC4

#42ABC4 is a light, moderate cyan. Relative luminance 0.343; OKLCH L 69.1% C 0.101 H 216.5°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#42ABC4
RGB	rgb(66, 171, 196)
HSL	hsl(192, 52%, 51%)
HSV	hsv(192, 66%, 77%)
CMYK	cmyk(66.3%, 12.8%, 0%, 23.1%)
CIE-LAB	lab(65.17, -22.14, -21.63)
CIE-LCH	lch(65.17, 30.95, 224.33°)
OKLab	oklab(69.1% -0.0813 -0.0602)
OKLCH	oklch(69.1% 0.101 216.5)
XYZ	xyz(26.7694, 34.2667, 57.4172)
Luminance	0.3427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42ABC4 #C45B42

analogous

#42C49C #42ABC4 #426AC4

triadic

#42ABC4 #C442AB #ABC442

tetradic

#42ABC4 #9C42C4 #C45B42 #6AC442

square

#42ABC4 #9C42C4 #C45B42 #6AC442

split-complementary

#42ABC4 #C4426A #C49C42

monochromatic

#215C6A #308599 #42ABC4 #71C0D3 #9FD4E1

Accessibility & contrast

On white

2.67

#42ABC4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#42ABC4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42ABC4

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42ABC4	#FFFFFF	#000000	##000000
##42ABC4	1.00	2.67	7.85	7.85
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AA6C5

Deuteranopia (green-blind)

#8898C4

Tritanopia (blue-blind)

#00B4B3

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #42abc4;
/* rgb */ color: rgb(66, 171, 196);
/* oklch */ color: oklch(69.1% 0.101 216.5);

Tailwind

colors: {
  custom: {
    50: '#86c4d6',
    500: '#42abc4',
    950: '#000000',
  },
}

SCSS

$custom: #42abc4;
$custom-light: #86c4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#42abc4",
  "rgb": {
    "r": 66,
    "g": 171,
    "b": 196
  },
  "hsl": {
    "h": 191.538,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.69098,
    "c": 0.10119,
    "h": 216.5
  },
  "luminance": 0.3427
}

Semantic roles & 50–950 ramp

primary

#42ABC4

secondary

#CE9F94

accent

#684CDC

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1214

muted

#7D8183

Preview Lab

Preview with #42ABC4

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

Preview Lab → · Contrast checker → · Palette generator →