#555CB7#555CB7

#555CB7 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.6% C 0.141 H 276.9°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#555CB7
RGB	rgb(85, 92, 183)
HSL	hsl(236, 40%, 53%)
HSV	hsv(236, 54%, 72%)
CMYK	cmyk(53.6%, 49.7%, 0%, 28.2%)
CIE-LAB	lab(42.77, 23.44, -49.23)
CIE-LCH	lch(42.77, 54.53, 295.46°)
OKLab	oklab(51.57% 0.017 -0.1404)
OKLCH	oklch(51.57% 0.141 276.9)
XYZ	xyz(16.1180, 13.0035, 46.4512)
Luminance	0.1300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CB7 #B7B055

analogous

#558DB7 #555CB7 #7F55B7

triadic

#555CB7 #B7555C #5CB755

tetradic

#555CB7 #B7558D #B7B055 #55B77F

square

#555CB7 #B7558D #B7B055 #55B77F

split-complementary

#555CB7 #B77F55 #8DB755

monochromatic

#2B3066 #3E4491 #555CB7 #8085C9 #ABAEDB

Accessibility & contrast

On white

5.83

#555CB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#555CB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CB7

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CB7	#FFFFFF	#000000	##FFFFFF
##555CB7	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3069BA

Deuteranopia (green-blind)

#2461B5

Tritanopia (blue-blind)

#287081

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #555cb7;
/* rgb */ color: rgb(85, 92, 183);
/* oklch */ color: oklch(51.6% 0.141 276.9);

Tailwind

colors: {
  custom: {
    50: '#8c8acd',
    500: '#555cb7',
    950: '#000000',
  },
}

SCSS

$custom: #555cb7;
$custom-light: #8c8acd;
$custom-dark: #000000;

JSON

{
  "hex": "#555cb7",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 183
  },
  "hsl": {
    "h": 235.714,
    "s": 40.496,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51571,
    "c": 0.14145,
    "h": 276.9
  },
  "luminance": 0.13004
}

Semantic roles & 50–950 ramp

primary

#555CB7

secondary

#C9C69F

accent

#C857D0

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B13

muted

#7E7C82

Preview Lab

Preview with #555CB7

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

Preview Lab → · Contrast checker → · Palette generator →