#5555CB#5555CB

#5555CB is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.7% C 0.178 H 278.2°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#5555CB
RGB	rgb(85, 85, 203)
HSL	hsl(240, 53%, 56%)
HSV	hsv(240, 58%, 80%)
CMYK	cmyk(58.1%, 58.1%, 0%, 20.4%)
CIE-LAB	lab(42.37, 34.33, -61.50)
CIE-LCH	lch(42.37, 70.43, 299.17°)
OKLab	oklab(51.7% 0.0253 -0.1766)
OKLCH	oklch(51.7% 0.178 278.2)
XYZ	xyz(17.7709, 12.7388, 58.0107)
Luminance	0.1274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5555CB #CBCB55

analogous

#5590CB #5555CB #9055CB

triadic

#5555CB #CB5555 #55CB55

tetradic

#5555CB #CB5590 #CBCB55 #55CB90

square

#5555CB #CB5590 #CBCB55 #55CB90

split-complementary

#5555CB #CB9055 #90CB55

monochromatic

#27277F #3535AE #5555CB #8484D9 #B3B3E8

Accessibility & contrast

On white

5.92

#5555CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#5555CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5555CB

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5555CB	#FFFFFF	#000000	##FFFFFF
##5555CB	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CF

Deuteranopia (green-blind)

#005FC9

Tritanopia (blue-blind)

#017188

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5555cb;
/* rgb */ color: rgb(85, 85, 203);
/* oklch */ color: oklch(51.7% 0.178 278.2);

Tailwind

colors: {
  custom: {
    50: '#9085dc',
    500: '#5555cb',
    950: '#000000',
  },
}

SCSS

$custom: #5555cb;
$custom-light: #9085dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5555cb",
  "rgb": {
    "r": 85,
    "g": 85,
    "b": 203
  },
  "hsl": {
    "h": 240,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51702,
    "c": 0.17837,
    "h": 278.2
  },
  "luminance": 0.1274
}

Semantic roles & 50–950 ramp

primary

#5555CB

secondary

#D6D6A6

accent

#DD4BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5555CB

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

Preview Lab → · Contrast checker → · Palette generator →