#42AECF#42AECF

#42AECF is a light, moderate cyan. Relative luminance 0.359; OKLCH L 70.3% C 0.108 H 221.9°. Best body text is #000000 at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#42AECF
RGB	rgb(66, 174, 207)
HSL	hsl(194, 59%, 54%)
HSV	hsv(194, 68%, 81%)
CMYK	cmyk(68.1%, 15.9%, 0%, 18.8%)
CIE-LAB	lab(66.47, -20.25, -25.74)
CIE-LCH	lch(66.47, 32.75, 231.80°)
OKLab	oklab(70.27% -0.0801 -0.0718)
OKLCH	oklch(70.27% 0.108 221.9)
XYZ	xyz(28.6407, 35.9322, 64.4456)
Luminance	0.3594 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42AECF #CF6342

analogous

#42CFAA #42AECF #4267CF

triadic

#42AECF #CF42AE #AECF42

tetradic

#42AECF #AA42CF #CF6342 #67CF42

square

#42AECF #AA42CF #CF6342 #67CF42

split-complementary

#42AECF #CF4267 #CFAA42

monochromatic

#1F6378 #2B8BA9 #42AECF #73C3DB #A4D8E8

Accessibility & contrast

On white

2.57

#42AECF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.19

#42AECF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #42AECF

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42AECF	#FFFFFF	#000000	##000000
##42AECF	1.00	2.57	8.19	8.19
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.19	21.00	1.00	1.00
##000000	8.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BAAD1

Deuteranopia (green-blind)

#879BCF

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #42aecf;
/* rgb */ color: rgb(66, 174, 207);
/* oklch */ color: oklch(70.3% 0.108 221.9);

Tailwind

colors: {
  custom: {
    50: '#87c6dd',
    500: '#42aecf',
    950: '#000000',
  },
}

SCSS

$custom: #42aecf;
$custom-light: #87c6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#42aecf",
  "rgb": {
    "r": 66,
    "g": 174,
    "b": 207
  },
  "hsl": {
    "h": 194.043,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.7027,
    "c": 0.10763,
    "h": 221.9
  },
  "luminance": 0.35935
}

Semantic roles & 50–950 ramp

primary

#42AECF

secondary

#D5A698

accent

#6A45E3

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #42AECF

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

Preview Lab → · Contrast checker → · Palette generator →