#5555CF#5555CF

#5555CF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 52.0% C 0.184 H 277.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#5555CF
RGB	rgb(85, 85, 207)
HSL	hsl(240, 56%, 57%)
HSV	hsv(240, 59%, 81%)
CMYK	cmyk(58.9%, 58.9%, 0%, 18.8%)
CIE-LAB	lab(42.66, 35.63, -63.33)
CIE-LCH	lch(42.66, 72.67, 299.36°)
OKLab	oklab(52.01% 0.0252 -0.1819)
OKLCH	oklch(52.01% 0.184 277.9)
XYZ	xyz(18.2537, 12.9320, 60.5536)
Luminance	0.1293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5555CF #CFCF55

analogous

#5592CF #5555CF #9255CF

triadic

#5555CF #CF5555 #55CF55

tetradic

#5555CF #CF5592 #CFCF55 #55CF92

square

#5555CF #CF5592 #CFCF55 #55CF92

split-complementary

#5555CF #CF9255 #92CF55

monochromatic

#252584 #3333B4 #5555CF #8585DC #B4B4EA

Accessibility & contrast

On white

5.86

#5555CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#5555CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5555CF

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5555CF	#FFFFFF	#000000	##FFFFFF
##5555CF	1.00	5.86	3.59	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD3

Deuteranopia (green-blind)

#0060CD

Tritanopia (blue-blind)

#00728A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5555cf;
/* rgb */ color: rgb(85, 85, 207);
/* oklch */ color: oklch(52.0% 0.184 277.9);

Tailwind

colors: {
  custom: {
    50: '#9085df',
    500: '#5555cf',
    950: '#000000',
  },
}

SCSS

$custom: #5555cf;
$custom-light: #9085df;
$custom-dark: #000000;

JSON

{
  "hex": "#5555cf",
  "rgb": {
    "r": 85,
    "g": 85,
    "b": 207
  },
  "hsl": {
    "h": 240,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52012,
    "c": 0.18369,
    "h": 277.9
  },
  "luminance": 0.12933
}

Semantic roles & 50–950 ramp

primary

#5555CF

secondary

#D9D9A7

accent

#DF49DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5555CF

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

Preview Lab → · Contrast checker → · Palette generator →