#555BBE#555BBE

#555BBE is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.153 H 277.0°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#555BBE
RGB	rgb(85, 91, 190)
HSL	hsl(237, 45%, 54%)
HSV	hsv(237, 55%, 75%)
CMYK	cmyk(55.3%, 52.1%, 0%, 25.5%)
CIE-LAB	lab(42.96, 26.35, -53.01)
CIE-LCH	lch(42.96, 59.20, 296.43°)
OKLab	oklab(51.86% 0.0187 -0.1515)
OKLCH	oklch(51.86% 0.153 277)
XYZ	xyz(16.7787, 13.1300, 50.3554)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BBE #BEB855

analogous

#5590BE #555BBE #8455BE

triadic

#555BBE #BE555B #5BBE55

tetradic

#555BBE #BE5590 #BEB855 #55BE84

square

#555BBE #BE5590 #BEB855 #55BE84

split-complementary

#555BBE #BE8455 #90BE55

monochromatic

#2A2E6E #3B419B #555BBE #8186CF #AEB0E0

Accessibility & contrast

On white

5.79

#555BBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#555BBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BBE

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BBE	#FFFFFF	#000000	##FFFFFF
##555BBE	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256AC1

Deuteranopia (green-blind)

#1261BC

Tritanopia (blue-blind)

#1F7184

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #555bbe;
/* rgb */ color: rgb(85, 91, 190);
/* oklch */ color: oklch(51.9% 0.153 277.0);

Tailwind

colors: {
  custom: {
    50: '#8d89d2',
    500: '#555bbe',
    950: '#000000',
  },
}

SCSS

$custom: #555bbe;
$custom-light: #8d89d2;
$custom-dark: #000000;

JSON

{
  "hex": "#555bbe",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 190
  },
  "hsl": {
    "h": 236.571,
    "s": 44.681,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51858,
    "c": 0.15269,
    "h": 277
  },
  "luminance": 0.13131
}

Semantic roles & 50–950 ramp

primary

#555BBE

secondary

#CECBA1

accent

#CD53D4

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555BBE

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

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