#42AFCF#42AFCF

#42AFCF is a light, moderate cyan. Relative luminance 0.363; OKLCH L 70.5% C 0.108 H 221.0°. Best body text is #000000 at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#42AFCF
RGB	rgb(66, 175, 207)
HSL	hsl(194, 59%, 54%)
HSV	hsv(194, 68%, 81%)
CMYK	cmyk(68.1%, 15.5%, 0%, 18.8%)
CIE-LAB	lab(66.76, -20.77, -25.28)
CIE-LCH	lch(66.76, 32.72, 230.59°)
OKLab	oklab(70.51% -0.0811 -0.0706)
OKLCH	oklch(70.51% 0.108 221)
XYZ	xyz(28.8346, 36.3200, 64.5102)
Luminance	0.3632 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AFCF #CF6242

analogous

#42CFA8 #42AFCF #4268CF

triadic

#42AFCF #CF42AF #AFCF42

tetradic

#42AFCF #A842CF #CF6242 #68CF42

square

#42AFCF #A842CF #CF6242 #68CF42

split-complementary

#42AFCF #CF4268 #CFA842

monochromatic

#1F6478 #2B8CA9 #42AFCF #73C4DB #A4D8E8

Accessibility & contrast

On white

2.54

#42AFCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.26

#42AFCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AFCF

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AFCF	#FFFFFF	#000000	##000000
##42AFCF	1.00	2.54	8.26	8.26
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.26	21.00	1.00	1.00
##000000	8.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CABD1

Deuteranopia (green-blind)

#889CCF

Tritanopia (blue-blind)

#00B9B9

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42afcf;
/* rgb */ color: rgb(66, 175, 207);
/* oklch */ color: oklch(70.5% 0.108 221.0);

Tailwind

colors: {
  custom: {
    50: '#87c7dd',
    500: '#42afcf',
    950: '#000000',
  },
}

SCSS

$custom: #42afcf;
$custom-light: #87c7dd;
$custom-dark: #000000;

JSON

{
  "hex": "#42afcf",
  "rgb": {
    "r": 66,
    "g": 175,
    "b": 207
  },
  "hsl": {
    "h": 193.617,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.70507,
    "c": 0.10754,
    "h": 221
  },
  "luminance": 0.36323
}

Semantic roles & 50–950 ramp

primary

#42AFCF

secondary

#D5A698

accent

#6945E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #42AFCF

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

Preview Lab → · Contrast checker → · Palette generator →