#5578CB#5578CB

#5578CB is a mid, vivid blue. Relative luminance 0.197; OKLCH L 58.6% C 0.134 H 265.3°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#5578CB
RGB	rgb(85, 120, 203)
HSL	hsl(222, 53%, 56%)
HSV	hsv(222, 58%, 80%)
CMYK	cmyk(58.1%, 40.9%, 0%, 20.4%)
CIE-LAB	lab(51.47, 12.61, -46.88)
CIE-LCH	lch(51.47, 48.55, 285.05°)
OKLab	oklab(58.59% -0.011 -0.1332)
OKLCH	oklch(58.59% 0.134 265.3)
XYZ	xyz(21.2386, 19.6743, 59.1666)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5578CB #CBA855

analogous

#55B3CB #5578CB #6D55CB

triadic

#5578CB #CB5578 #78CB55

tetradic

#5578CB #CB55B3 #CBA855 #55CB6D

square

#5578CB #CB55B3 #CBA855 #55CB6D

split-complementary

#5578CB #CB6D55 #B3CB55

monochromatic

#27417F #3559AE #5578CB #849DD9 #B3C2E8

Accessibility & contrast

On white

4.26

#5578CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#5578CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5578CB

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5578CB	#FFFFFF	#000000	##000000
##5578CB	1.00	4.26	4.94	4.94
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CE

Deuteranopia (green-blind)

#4576C9

Tritanopia (blue-blind)

#008A98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5578cb;
/* rgb */ color: rgb(85, 120, 203);
/* oklch */ color: oklch(58.6% 0.134 265.3);

Tailwind

colors: {
  custom: {
    50: '#8e9edb',
    500: '#5578cb',
    950: '#000000',
  },
}

SCSS

$custom: #5578cb;
$custom-light: #8e9edb;
$custom-dark: #000000;

JSON

{
  "hex": "#5578cb",
  "rgb": {
    "r": 85,
    "g": 120,
    "b": 203
  },
  "hsl": {
    "h": 222.203,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.58589,
    "c": 0.13369,
    "h": 265.3
  },
  "luminance": 0.19676
}

Semantic roles & 50–950 ramp

primary

#5578CB

secondary

#D6C8A6

accent

#B14BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5578CB

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

Preview Lab → · Contrast checker → · Palette generator →