#4557CB#4557CB

#4557CB is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.0% C 0.180 H 271.8°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#4557CB
RGB	rgb(69, 87, 203)
HSL	hsl(232, 56%, 53%)
HSV	hsv(232, 66%, 80%)
CMYK	cmyk(66%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(41.83, 30.42, -62.42)
CIE-LCH	lch(41.83, 69.44, 295.99°)
OKLab	oklab(51.04% 0.0056 -0.1796)
OKLCH	oklch(51.04% 0.18 271.8)
XYZ	xyz(16.6383, 12.3919, 58.0034)
Luminance	0.1239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4557CB #CBB945

analogous

#459ACB #4557CB #7645CB

triadic

#4557CB #CB4557 #57CB45

tetradic

#4557CB #CB459A #CBB945 #45CB76

square

#4557CB #CB459A #CBB945 #45CB76

split-complementary

#4557CB #CB7645 #9ACB45

monochromatic

#212C75 #2E3EA5 #4557CB #7582D8 #A5ADE6

Accessibility & contrast

On white

6.04

#4557CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#4557CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4557CB

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4557CB	#FFFFFF	#000000	##FFFFFF
##4557CB	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4557cb;
/* rgb */ color: rgb(69, 87, 203);
/* oklch */ color: oklch(51.0% 0.180 271.8);

Tailwind

colors: {
  custom: {
    50: '#8886dc',
    500: '#4557cb',
    950: '#000000',
  },
}

SCSS

$custom: #4557cb;
$custom-light: #8886dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4557cb",
  "rgb": {
    "r": 69,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 231.94,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51037,
    "c": 0.17974,
    "h": 271.8
  },
  "luminance": 0.12393
}

Semantic roles & 50–950 ramp

primary

#4557CB

secondary

#D3CB99

accent

#CB48E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0B15

muted

#7D7C83

Preview Lab

Preview with #4557CB

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

Preview Lab → · Contrast checker → · Palette generator →