#555FB2#555FB2

#555FB2 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.8% C 0.130 H 275.7°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#555FB2
RGB	rgb(85, 95, 178)
HSL	hsl(234, 38%, 52%)
HSV	hsv(234, 52%, 70%)
CMYK	cmyk(52.2%, 46.6%, 0%, 30.2%)
CIE-LAB	lab(43.26, 19.93, -45.53)
CIE-LCH	lch(43.26, 49.70, 293.64°)
OKLab	oklab(51.84% 0.013 -0.1295)
OKLCH	oklch(51.84% 0.13 275.7)
XYZ	xyz(15.8719, 13.3291, 43.8473)
Luminance	0.1333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FB2 #B2A855

analogous

#558EB2 #555FB2 #7A55B2

triadic

#555FB2 #B2555F #5FB255

tetradic

#555FB2 #B2558E #B2A855 #55B27A

square

#555FB2 #B2558E #B2A855 #55B27A

split-complementary

#555FB2 #B27A55 #8EB255

monochromatic

#2C3261 #3F478B #555FB2 #7F87C5 #A9AED8

Accessibility & contrast

On white

5.73

#555FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#555FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FB2

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FB2	#FFFFFF	#000000	##FFFFFF
##555FB2	1.00	5.73	3.67	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6AB5

Deuteranopia (green-blind)

#3163B0

Tritanopia (blue-blind)

#2C7180

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555fb2;
/* rgb */ color: rgb(85, 95, 178);
/* oklch */ color: oklch(51.8% 0.130 275.7);

Tailwind

colors: {
  custom: {
    50: '#8b8cc9',
    500: '#555fb2',
    950: '#000000',
  },
}

SCSS

$custom: #555fb2;
$custom-light: #8b8cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#555fb2",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 178
  },
  "hsl": {
    "h": 233.548,
    "s": 37.652,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51841,
    "c": 0.13016,
    "h": 275.7
  },
  "luminance": 0.1333
}

Semantic roles & 50–950 ramp

primary

#555FB2

secondary

#C6C19D

accent

#C15ACE

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #555FB2

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

Preview Lab → · Contrast checker → · Palette generator →