#5579BB#5579BB

#5579BB is a mid, moderate blue. Relative luminance 0.192; OKLCH L 57.9% C 0.110 H 261.8°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#5579BB
RGB	rgb(85, 121, 187)
HSL	hsl(219, 43%, 53%)
HSV	hsv(219, 55%, 73%)
CMYK	cmyk(54.5%, 35.3%, 0%, 26.7%)
CIE-LAB	lab(50.91, 6.74, -38.60)
CIE-LCH	lch(50.91, 39.19, 279.90°)
OKLab	oklab(57.89% -0.0157 -0.109)
OKLCH	oklch(57.89% 0.11 261.8)
XYZ	xyz(19.5503, 19.1924, 49.6783)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5579BB #BB9755

analogous

#55ACBB #5579BB #6455BB

triadic

#5579BB #BB5579 #79BB55

tetradic

#5579BB #BB55AC #BB9755 #55BB64

square

#5579BB #BB55AC #BB9755 #55BB64

split-complementary

#5579BB #BB6455 #ACBB55

monochromatic

#2B416B #3C5C97 #5579BB #819BCC #ACBEDE

Accessibility & contrast

On white

4.34

#5579BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#5579BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5579BB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5579BB	#FFFFFF	#000000	##000000
##5579BB	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7EBE

Deuteranopia (green-blind)

#5275BA

Tritanopia (blue-blind)

#1A8791

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5579bb;
/* rgb */ color: rgb(85, 121, 187);
/* oklch */ color: oklch(57.9% 0.110 261.8);

Tailwind

colors: {
  custom: {
    50: '#8c9fd0',
    500: '#5579bb',
    950: '#000000',
  },
}

SCSS

$custom: #5579bb;
$custom-light: #8c9fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5579bb",
  "rgb": {
    "r": 85,
    "g": 121,
    "b": 187
  },
  "hsl": {
    "h": 218.824,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57887,
    "c": 0.11016,
    "h": 261.8
  },
  "luminance": 0.19194
}

Semantic roles & 50–950 ramp

primary

#5579BB

secondary

#CCBCA0

accent

#A655D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0E14

muted

#7D7E82

Preview Lab

Preview with #5579BB

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

Preview Lab → · Contrast checker → · Palette generator →