#555BDE#555BDE

#555BDE is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.2% C 0.196 H 275.7°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#555BDE
RGB	rgb(85, 91, 222)
HSL	hsl(237, 67%, 60%)
HSV	hsv(237, 62%, 87%)
CMYK	cmyk(61.7%, 59%, 0%, 12.9%)
CIE-LAB	lab(45.20, 36.87, -67.78)
CIE-LCH	lch(45.20, 77.16, 298.55°)
OKLab	oklab(54.24% 0.0195 -0.195)
OKLCH	oklch(54.24% 0.196 275.7)
XYZ	xyz(20.6679, 14.6857, 70.8386)
Luminance	0.1469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BDE #DED855

analogous

#55A0DE #555BDE #9355DE

triadic

#555BDE #DE555B #5BDE55

tetradic

#555BDE #DE55A0 #DED855 #55DE93

square

#555BDE #DE55A0 #DED855 #55DE93

split-complementary

#555BDE #DE9355 #A0DE55

monochromatic

#1E239B #282FCE #555BDE #888CE8 #BCBEF2

Accessibility & contrast

On white

5.33

#555BDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#555BDE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BDE

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BDE	#FFFFFF	#000000	##FFFFFF
##555BDE	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071E2

Deuteranopia (green-blind)

#0065DB

Tritanopia (blue-blind)

#007B94

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555bde;
/* rgb */ color: rgb(85, 91, 222);
/* oklch */ color: oklch(54.2% 0.196 275.7);

Tailwind

colors: {
  custom: {
    50: '#9289e9',
    500: '#555bde',
    950: '#000000',
  },
}

SCSS

$custom: #555bde;
$custom-light: #9289e9;
$custom-dark: #000000;

JSON

{
  "hex": "#555bde",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 222
  },
  "hsl": {
    "h": 237.372,
    "s": 67.488,
    "l": 60.196
  },
  "oklch": {
    "l": 0.54239,
    "c": 0.19596,
    "h": 275.7
  },
  "luminance": 0.14687
}

Semantic roles & 50–950 ramp

primary

#555BDE

secondary

#E2DFAD

accent

#C716CF

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BDE

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

Preview Lab → · Contrast checker → · Palette generator →