#5578CF#5578CF

#5578CF is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.8% C 0.139 H 265.8°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#5578CF
RGB	rgb(85, 120, 207)
HSL	hsl(223, 56%, 57%)
HSV	hsv(223, 59%, 81%)
CMYK	cmyk(58.9%, 42%, 0%, 18.8%)
CIE-LAB	lab(51.69, 13.94, -48.81)
CIE-LCH	lch(51.69, 50.76, 285.94°)
OKLab	oklab(58.83% -0.0102 -0.1389)
OKLCH	oklch(58.83% 0.139 265.8)
XYZ	xyz(21.7214, 19.8674, 61.7095)
Luminance	0.1987 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5578CF #CFAC55

analogous

#55B5CF #5578CF #6F55CF

triadic

#5578CF #CF5578 #78CF55

tetradic

#5578CF #CF55B5 #CFAC55 #55CF6F

square

#5578CF #CF55B5 #CFAC55 #55CF6F

split-complementary

#5578CF #CF6F55 #B5CF55

monochromatic

#254184 #3358B4 #5578CF #859EDC #B4C4EA

Accessibility & contrast

On white

4.22

#5578CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#5578CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5578CF

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5578CF	#FFFFFF	#000000	##000000
##5578CF	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5281D2

Deuteranopia (green-blind)

#4176CD

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5578cf;
/* rgb */ color: rgb(85, 120, 207);
/* oklch */ color: oklch(58.8% 0.139 265.8);

Tailwind

colors: {
  custom: {
    50: '#8f9ede',
    500: '#5578cf',
    950: '#000000',
  },
}

SCSS

$custom: #5578cf;
$custom-light: #8f9ede;
$custom-dark: #000000;

JSON

{
  "hex": "#5578cf",
  "rgb": {
    "r": 85,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 222.787,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.5883,
    "c": 0.13927,
    "h": 265.8
  },
  "luminance": 0.19869
}

Semantic roles & 50–950 ramp

primary

#5578CF

secondary

#D9CAA7

accent

#B449DF

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5578CF

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

Preview Lab → · Contrast checker → · Palette generator →