#5573CB#5573CB

#5573CB is a mid, vivid blue. Relative luminance 0.185; OKLCH L 57.5% C 0.140 H 267.7°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#5573CB
RGB	rgb(85, 115, 203)
HSL	hsl(225, 53%, 56%)
HSV	hsv(225, 58%, 80%)
CMYK	cmyk(58.1%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(50.10, 15.68, -49.06)
CIE-LCH	lch(50.10, 51.50, 287.73°)
OKLab	oklab(57.54% -0.0056 -0.1397)
OKLCH	oklch(57.54% 0.14 267.7)
XYZ	xyz(20.6529, 18.5029, 58.9714)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5573CB #CBAD55

analogous

#55AECB #5573CB #7255CB

triadic

#5573CB #CB5573 #73CB55

tetradic

#5573CB #CB55AE #CBAD55 #55CB72

square

#5573CB #CB55AE #CBAD55 #55CB72

split-complementary

#5573CB #CB7255 #AECB55

monochromatic

#273D7F #3554AE #5573CB #849AD9 #B3C0E8

Accessibility & contrast

On white

4.47

#5573CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#5573CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5573CB

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5573CB	#FFFFFF	#000000	##000000
##5573CB	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7DCE

Deuteranopia (green-blind)

#3C72C9

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5573cb;
/* rgb */ color: rgb(85, 115, 203);
/* oklch */ color: oklch(57.5% 0.140 267.7);

Tailwind

colors: {
  custom: {
    50: '#8e9adb',
    500: '#5573cb',
    950: '#000000',
  },
}

SCSS

$custom: #5573cb;
$custom-light: #8e9adb;
$custom-dark: #000000;

JSON

{
  "hex": "#5573cb",
  "rgb": {
    "r": 85,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 224.746,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.57538,
    "c": 0.13979,
    "h": 267.7
  },
  "luminance": 0.18505
}

Semantic roles & 50–950 ramp

primary

#5573CB

secondary

#D6CAA6

accent

#B84BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5573CB

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

Preview Lab → · Contrast checker → · Palette generator →