#5558BB#5558BB

#5558BB is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.153 H 278.2°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#5558BB
RGB	rgb(85, 88, 187)
HSL	hsl(238, 43%, 53%)
HSV	hsv(238, 55%, 73%)
CMYK	cmyk(54.5%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(42.00, 27.25, -52.81)
CIE-LCH	lch(42.00, 59.43, 297.30°)
OKLab	oklab(51.07% 0.0218 -0.151)
OKLCH	oklch(51.07% 0.153 278.2)
XYZ	xyz(16.2028, 12.4976, 48.5625)
Luminance	0.1250 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5558BB #BBB855

analogous

#558BBB #5558BB #8555BB

triadic

#5558BB #BB5558 #58BB55

tetradic

#5558BB #BB558B #BBB855 #55BB85

square

#5558BB #BB558B #BBB855 #55BB85

split-complementary

#5558BB #BB8555 #8BBB55

monochromatic

#2B2D6B #3C3F97 #5558BB #8183CC #ACAEDE

Accessibility & contrast

On white

6.00

#5558BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#5558BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5558BB

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5558BB	#FFFFFF	#000000	##FFFFFF
##5558BB	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2067BE

Deuteranopia (green-blind)

#0D5FB9

Tritanopia (blue-blind)

#246E81

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5558bb;
/* rgb */ color: rgb(85, 88, 187);
/* oklch */ color: oklch(51.1% 0.153 278.2);

Tailwind

colors: {
  custom: {
    50: '#8d87d0',
    500: '#5558bb',
    950: '#000000',
  },
}

SCSS

$custom: #5558bb;
$custom-light: #8d87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5558bb",
  "rgb": {
    "r": 85,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 238.235,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51073,
    "c": 0.15255,
    "h": 278.2
  },
  "luminance": 0.12499
}

Semantic roles & 50–950 ramp

primary

#5558BB

secondary

#CCCBA0

accent

#CF55D3

background

#F9F8FC

surface

#F1EFF9

border

#CBCAD2

text

#0D0B14

muted

#7E7C82

Preview Lab

Preview with #5558BB

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

Preview Lab → · Contrast checker → · Palette generator →