#42AFC8#42AFC8

#42AFC8 is a light, moderate cyan. Relative luminance 0.360; OKLCH L 70.2% C 0.104 H 215.9°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#42AFC8
RGB	rgb(66, 175, 200)
HSL	hsl(191, 55%, 52%)
HSV	hsv(191, 67%, 78%)
CMYK	cmyk(67%, 12.5%, 0%, 21.6%)
CIE-LAB	lab(66.51, -22.96, -21.81)
CIE-LCH	lch(66.51, 31.66, 223.53°)
OKLab	oklab(70.22% -0.0839 -0.0607)
OKLCH	oklch(70.22% 0.104 215.9)
XYZ	xyz(27.9977, 35.9852, 60.1027)
Luminance	0.3599 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFC8 #C85B42

analogous

#42C89E #42AFC8 #426CC8

triadic

#42AFC8 #C842AF #AFC842

tetradic

#42AFC8 #9E42C8 #C85B42 #6CC842

square

#42AFC8 #9E42C8 #C85B42 #6CC842

split-complementary

#42AFC8 #C8426C #C89E42

monochromatic

#20616F #2E8A9F #42AFC8 #71C3D6 #A1D7E4

Accessibility & contrast

On white

2.56

#42AFC8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#42AFC8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFC8

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFC8	#FFFFFF	#000000	##000000
##42AFC8	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EAAC9

Deuteranopia (green-blind)

#8B9CC8

Tritanopia (blue-blind)

#00B8B7

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42afc8;
/* rgb */ color: rgb(66, 175, 200);
/* oklch */ color: oklch(70.2% 0.104 215.9);

Tailwind

colors: {
  custom: {
    50: '#86c7d8',
    500: '#42afc8',
    950: '#000000',
  },
}

SCSS

$custom: #42afc8;
$custom-light: #86c7d8;
$custom-dark: #000000;

JSON

{
  "hex": "#42afc8",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 200
  },
  "hsl": {
    "h": 191.194,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.70218,
    "c": 0.10353,
    "h": 215.9
  },
  "luminance": 0.35988
}

Semantic roles & 50–950 ramp

primary

#42AFC8

secondary

#D0A196

accent

#654ADE

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #42AFC8

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

Preview Lab → · Contrast checker → · Palette generator →