#428AC1#428AC1

#428AC1 is a mid, moderate cyan. Relative luminance 0.232; OKLCH L 61.2% C 0.110 H 244.2°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#428AC1
RGB	rgb(66, 138, 193)
HSL	hsl(206, 51%, 51%)
HSV	hsv(206, 66%, 76%)
CMYK	cmyk(65.8%, 28.5%, 0%, 24.3%)
CIE-LAB	lab(55.26, -5.09, -35.26)
CIE-LCH	lch(55.26, 35.63, 261.78°)
OKLab	oklab(61.16% -0.0481 -0.0994)
OKLCH	oklch(61.16% 0.11 244.2)
XYZ	xyz(20.9573, 23.1833, 53.8121)
Luminance	0.2319 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#428AC1 #C17942

analogous

#42C1B8 #428AC1 #424AC1

triadic

#428AC1 #C1428A #8AC142

tetradic

#428AC1 #B842C1 #C17942 #4AC142

square

#428AC1 #B842C1 #C17942 #4AC142

split-complementary

#428AC1 #C1424A #C1B842

monochromatic

#224967 #316A95 #428AC1 #70A7D0 #9EC3DF

Accessibility & contrast

On white

3.73

#428AC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#428AC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428AC1

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##428AC1	#FFFFFF	#000000	##000000
##428AC1	1.00	3.73	5.64	5.64
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718BC3

Deuteranopia (green-blind)

#607FC0

Tritanopia (blue-blind)

#00979D

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #428ac1;
/* rgb */ color: rgb(66, 138, 193);
/* oklch */ color: oklch(61.2% 0.110 244.2);

Tailwind

colors: {
  custom: {
    50: '#83acd4',
    500: '#428ac1',
    950: '#000000',
  },
}

SCSS

$custom: #428ac1;
$custom-light: #83acd4;
$custom-dark: #000000;

JSON

{
  "hex": "#428ac1",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 193
  },
  "hsl": {
    "h": 205.984,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.61158,
    "c": 0.11049,
    "h": 244.2
  },
  "luminance": 0.23185
}

Semantic roles & 50–950 ramp

primary

#428AC1

secondary

#CCAC93

accent

#8B4EDA

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #428AC1

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

Preview Lab → · Contrast checker → · Palette generator →