#555BD7#555BD7

#555BD7 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.7% C 0.187 H 276.0°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#555BD7
RGB	rgb(85, 91, 215)
HSL	hsl(237, 62%, 59%)
HSV	hsv(237, 60%, 84%)
CMYK	cmyk(60.5%, 57.7%, 0%, 15.7%)
CIE-LAB	lab(44.69, 34.57, -64.63)
CIE-LCH	lch(44.69, 73.30, 298.14°)
OKLab	oklab(53.7% 0.0196 -0.1857)
OKLCH	oklch(53.7% 0.187 276)
XYZ	xyz(19.7492, 14.3182, 65.9998)
Luminance	0.1432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BD7 #D7D155

analogous

#559CD7 #555BD7 #9055D7

triadic

#555BD7 #D7555B #5BD755

tetradic

#555BD7 #D7559C #D7D155 #55D790

square

#555BD7 #D7559C #D7D155 #55D790

split-complementary

#555BD7 #D79055 #9CD755

monochromatic

#222790 #2D34C1 #555BD7 #878BE3 #B8BBEE

Accessibility & contrast

On white

5.43

#555BD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#555BD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BD7

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BD7	#FFFFFF	#000000	##FFFFFF
##555BD7	1.00	5.43	3.86	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDB

Deuteranopia (green-blind)

#0064D4

Tritanopia (blue-blind)

#007990

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555bd7;
/* rgb */ color: rgb(85, 91, 215);
/* oklch */ color: oklch(53.7% 0.187 276.0);

Tailwind

colors: {
  custom: {
    50: '#9189e4',
    500: '#555bd7',
    950: '#000000',
  },
}

SCSS

$custom: #555bd7;
$custom-light: #9189e4;
$custom-dark: #000000;

JSON

{
  "hex": "#555bd7",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 215
  },
  "hsl": {
    "h": 237.231,
    "s": 61.905,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53696,
    "c": 0.18675,
    "h": 276
  },
  "luminance": 0.1432
}

Semantic roles & 50–950 ramp

primary

#555BD7

secondary

#DEDBAA

accent

#DE43E5

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BD7

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

Preview Lab → · Contrast checker → · Palette generator →