#5578CE#5578CE

#5578CE is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.8% C 0.138 H 265.7°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5578CE
RGB	rgb(85, 120, 206)
HSL	hsl(223, 55%, 57%)
HSV	hsv(223, 59%, 81%)
CMYK	cmyk(58.7%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(51.63, 13.61, -48.33)
CIE-LCH	lch(51.63, 50.21, 285.72°)
OKLab	oklab(58.77% -0.0104 -0.1375)
OKLCH	oklch(58.77% 0.138 265.7)
XYZ	xyz(21.5996, 19.8187, 61.0677)
Luminance	0.1982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5578CE #CEAB55

analogous

#55B4CE #5578CE #6F55CE

triadic

#5578CE #CE5578 #78CE55

tetradic

#5578CE #CE55B4 #CEAB55 #55CE6F

square

#5578CE #CE55B4 #CEAB55 #55CE6F

split-complementary

#5578CE #CE6F55 #B4CE55

monochromatic

#264183 #3358B2 #5578CE #859EDC #B4C3E9

Accessibility & contrast

On white

4.23

#5578CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#5578CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5578CE

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5578CE	#FFFFFF	#000000	##000000
##5578CE	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5281D1

Deuteranopia (green-blind)

#4276CC

Tritanopia (blue-blind)

#008B99

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5578ce;
/* rgb */ color: rgb(85, 120, 206);
/* oklch */ color: oklch(58.8% 0.138 265.7);

Tailwind

colors: {
  custom: {
    50: '#8e9edd',
    500: '#5578ce',
    950: '#000000',
  },
}

SCSS

$custom: #5578ce;
$custom-light: #8e9edd;
$custom-dark: #000000;

JSON

{
  "hex": "#5578ce",
  "rgb": {
    "r": 85,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 222.645,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.58769,
    "c": 0.13787,
    "h": 265.7
  },
  "luminance": 0.1982
}

Semantic roles & 50–950 ramp

primary

#5578CE

secondary

#D8CAA7

accent

#B349DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5578CE

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

Preview Lab → · Contrast checker → · Palette generator →