#5555CD#5555CD

#5555CD is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.9% C 0.181 H 278.0°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#5555CD
RGB	rgb(85, 85, 205)
HSL	hsl(240, 55%, 57%)
HSV	hsv(240, 59%, 80%)
CMYK	cmyk(58.5%, 58.5%, 0%, 19.6%)
CIE-LAB	lab(42.51, 34.98, -62.42)
CIE-LCH	lch(42.51, 71.55, 299.26°)
OKLab	oklab(51.86% 0.0253 -0.1793)
OKLCH	oklch(51.86% 0.181 278)
XYZ	xyz(18.0107, 12.8348, 59.2740)
Luminance	0.1284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5555CD #CDCD55

analogous

#5591CD #5555CD #9155CD

triadic

#5555CD #CD5555 #55CD55

tetradic

#5555CD #CD5591 #CDCD55 #55CD91

square

#5555CD #CD5591 #CDCD55 #55CD91

split-complementary

#5555CD #CD9155 #91CD55

monochromatic

#262682 #3434B1 #5555CD #8484DB #B4B4E9

Accessibility & contrast

On white

5.89

#5555CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#5555CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5555CD

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5555CD	#FFFFFF	#000000	##FFFFFF
##5555CD	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#005FCB

Tritanopia (blue-blind)

#007289

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5555cd;
/* rgb */ color: rgb(85, 85, 205);
/* oklch */ color: oklch(51.9% 0.181 278.0);

Tailwind

colors: {
  custom: {
    50: '#9085dd',
    500: '#5555cd',
    950: '#000000',
  },
}

SCSS

$custom: #5555cd;
$custom-light: #9085dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5555cd",
  "rgb": {
    "r": 85,
    "g": 85,
    "b": 205
  },
  "hsl": {
    "h": 240,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.51857,
    "c": 0.18104,
    "h": 278
  },
  "luminance": 0.12836
}

Semantic roles & 50–950 ramp

primary

#5555CD

secondary

#D7D7A6

accent

#DE4ADE

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5555CD

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

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