#555AD5#555AD5

#555AD5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.4% C 0.185 H 276.4°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#555AD5
RGB	rgb(85, 90, 213)
HSL	hsl(238, 60%, 58%)
HSV	hsv(238, 60%, 84%)
CMYK	cmyk(60.1%, 57.7%, 0%, 16.5%)
CIE-LAB	lab(44.30, 34.53, -64.11)
CIE-LCH	lch(44.30, 72.82, 298.30°)
OKLab	oklab(53.36% 0.0205 -0.1842)
OKLCH	oklch(53.36% 0.185 276.4)
XYZ	xyz(19.4088, 14.0462, 64.6263)
Luminance	0.1405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555AD5 #D5D055

analogous

#559AD5 #555AD5 #9055D5

triadic

#555AD5 #D5555A #5AD555

tetradic

#555AD5 #D5559A #D5D055 #55D590

square

#555AD5 #D5559A #D5D055 #55D590

split-complementary

#555AD5 #D59055 #9AD555

monochromatic

#23278D #2F34BE #555AD5 #868AE1 #B7B9ED

Accessibility & contrast

On white

5.51

#555AD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#555AD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555AD5

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555AD5	#FFFFFF	#000000	##FFFFFF
##555AD5	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED9

Deuteranopia (green-blind)

#0063D3

Tritanopia (blue-blind)

#00788F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555ad5;
/* rgb */ color: rgb(85, 90, 213);
/* oklch */ color: oklch(53.4% 0.185 276.4);

Tailwind

colors: {
  custom: {
    50: '#9188e3',
    500: '#555ad5',
    950: '#000000',
  },
}

SCSS

$custom: #555ad5;
$custom-light: #9188e3;
$custom-dark: #000000;

JSON

{
  "hex": "#555ad5",
  "rgb": {
    "r": 85,
    "g": 90,
    "b": 213
  },
  "hsl": {
    "h": 237.656,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53363,
    "c": 0.18535,
    "h": 276.4
  },
  "luminance": 0.14048
}

Semantic roles & 50–950 ramp

primary

#555AD5

secondary

#DCDAA9

accent

#DD44E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B15

muted

#7E7C84

Preview Lab

Preview with #555AD5

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

Preview Lab → · Contrast checker → · Palette generator →