#5579CB#5579CB

#5579CB is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.8% C 0.133 H 264.8°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#5579CB
RGB	rgb(85, 121, 203)
HSL	hsl(222, 53%, 56%)
HSV	hsv(222, 58%, 80%)
CMYK	cmyk(58.1%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(51.74, 11.99, -46.45)
CIE-LCH	lch(51.74, 47.97, 284.48°)
OKLab	oklab(58.8% -0.0121 -0.132)
OKLCH	oklch(58.8% 0.133 264.8)
XYZ	xyz(21.3595, 19.9161, 59.2069)
Luminance	0.1992 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5579CB #CBA755

analogous

#55B4CB #5579CB #6C55CB

triadic

#5579CB #CB5579 #79CB55

tetradic

#5579CB #CB55B4 #CBA755 #55CB6C

square

#5579CB #CB55B4 #CBA755 #55CB6C

split-complementary

#5579CB #CB6C55 #B4CB55

monochromatic

#27427F #355AAE #5579CB #849ED9 #B3C3E8

Accessibility & contrast

On white

4.21

#5579CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#5579CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5579CB

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5579CB	#FFFFFF	#000000	##000000
##5579CB	1.00	4.21	4.98	4.98
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5681CE

Deuteranopia (green-blind)

#4676C9

Tritanopia (blue-blind)

#008B98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5579cb;
/* rgb */ color: rgb(85, 121, 203);
/* oklch */ color: oklch(58.8% 0.133 264.8);

Tailwind

colors: {
  custom: {
    50: '#8e9fdb',
    500: '#5579cb',
    950: '#000000',
  },
}

SCSS

$custom: #5579cb;
$custom-light: #8e9fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5579cb",
  "rgb": {
    "r": 85,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 221.695,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.58801,
    "c": 0.1325,
    "h": 264.8
  },
  "luminance": 0.19918
}

Semantic roles & 50–950 ramp

primary

#5579CB

secondary

#D6C7A6

accent

#B04BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5579CB

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

Preview Lab → · Contrast checker → · Palette generator →