#555CBF#555CBF

#555CBF is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.153 H 276.7°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#555CBF
RGB	rgb(85, 92, 191)
HSL	hsl(236, 45%, 54%)
HSV	hsv(236, 55%, 75%)
CMYK	cmyk(55.5%, 51.8%, 0%, 25.1%)
CIE-LAB	lab(43.28, 26.05, -53.08)
CIE-LCH	lch(43.28, 59.13, 296.15°)
OKLab	oklab(52.12% 0.0177 -0.1517)
OKLCH	oklch(52.12% 0.153 276.7)
XYZ	xyz(16.9744, 13.3460, 50.9617)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CBF #BFB855

analogous

#5591BF #555CBF #8355BF

triadic

#555CBF #BF555C #5CBF55

tetradic

#555CBF #BF5591 #BFB855 #55BF83

square

#555CBF #BF5591 #BFB855 #55BF83

split-complementary

#555CBF #BF8355 #91BF55

monochromatic

#2A2F70 #3B419C #555CBF #8187D0 #AEB1E0

Accessibility & contrast

On white

5.72

#555CBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#555CBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CBF

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CBF	#FFFFFF	#000000	##FFFFFF
##555CBF	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#266BC2

Deuteranopia (green-blind)

#1362BD

Tritanopia (blue-blind)

#1E7285

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555cbf;
/* rgb */ color: rgb(85, 92, 191);
/* oklch */ color: oklch(52.1% 0.153 276.7);

Tailwind

colors: {
  custom: {
    50: '#8d8ad3',
    500: '#555cbf',
    950: '#000000',
  },
}

SCSS

$custom: #555cbf;
$custom-light: #8d8ad3;
$custom-dark: #000000;

JSON

{
  "hex": "#555cbf",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 191
  },
  "hsl": {
    "h": 236.038,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52121,
    "c": 0.15275,
    "h": 276.7
  },
  "luminance": 0.13347
}

Semantic roles & 50–950 ramp

primary

#555CBF

secondary

#CECBA1

accent

#CC53D5

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555CBF

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

Preview Lab → · Contrast checker → · Palette generator →