#555ECD#555ECD

#555ECD is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.5% C 0.169 H 275.6°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#555ECD
RGB	rgb(85, 94, 205)
HSL	hsl(236, 55%, 57%)
HSV	hsv(236, 59%, 80%)
CMYK	cmyk(58.5%, 54.1%, 0%, 19.6%)
CIE-LAB	lab(44.72, 29.41, -58.84)
CIE-LCH	lch(44.72, 65.79, 296.56°)
OKLab	oklab(53.5% 0.0165 -0.1687)
OKLCH	oklch(53.5% 0.169 275.6)
XYZ	xyz(18.7649, 14.3431, 59.5254)
Luminance	0.1434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555ECD #CDC455

analogous

#559ACD #555ECD #8855CD

triadic

#555ECD #CD555E #5ECD55

tetradic

#555ECD #CD559A #CDC455 #55CD88

square

#555ECD #CD559A #CDC455 #55CD88

split-complementary

#555ECD #CD8855 #9ACD55

monochromatic

#262D82 #343DB1 #555ECD #848BDB #B4B8E9

Accessibility & contrast

On white

5.43

#555ECD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#555ECD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555ECD

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555ECD	#FFFFFF	#000000	##FFFFFF
##555ECD	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#136FD1

Deuteranopia (green-blind)

#0065CB

Tritanopia (blue-blind)

#00788C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555ecd;
/* rgb */ color: rgb(85, 94, 205);
/* oklch */ color: oklch(53.5% 0.169 275.6);

Tailwind

colors: {
  custom: {
    50: '#8f8bdd',
    500: '#555ecd',
    950: '#000000',
  },
}

SCSS

$custom: #555ecd;
$custom-light: #8f8bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#555ecd",
  "rgb": {
    "r": 85,
    "g": 94,
    "b": 205
  },
  "hsl": {
    "h": 235.5,
    "s": 54.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.53499,
    "c": 0.16948,
    "h": 275.6
  },
  "luminance": 0.14344
}

Semantic roles & 50–950 ramp

primary

#555ECD

secondary

#D7D4A6

accent

#D34ADE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #555ECD

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

Preview Lab → · Contrast checker → · Palette generator →