#555BE1#555BE1

#555BE1 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.5% C 0.200 H 275.6°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#555BE1
RGB	rgb(85, 91, 225)
HSL	hsl(237, 70%, 61%)
HSV	hsv(237, 62%, 88%)
CMYK	cmyk(62.2%, 59.6%, 0%, 11.8%)
CIE-LAB	lab(45.43, 37.86, -69.12)
CIE-LCH	lch(45.43, 78.81, 298.71°)
OKLab	oklab(54.47% 0.0195 -0.1989)
OKLCH	oklch(54.47% 0.2 275.6)
XYZ	xyz(21.0736, 14.8480, 72.9750)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BE1 #E1DB55

analogous

#55A1E1 #555BE1 #9555E1

triadic

#555BE1 #E1555B #5BE155

tetradic

#555BE1 #E155A1 #E1DB55 #55E195

square

#555BE1 #E155A1 #E1DB55 #55E195

split-complementary

#555BE1 #E19555 #A1E155

monochromatic

#1C229F #252DD3 #555BE1 #898DEA #BDBFF3

Accessibility & contrast

On white

5.29

#555BE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#555BE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BE1

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BE1	#FFFFFF	#000000	##FFFFFF
##555BE1	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E5

Deuteranopia (green-blind)

#0065DE

Tritanopia (blue-blind)

#007C95

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555be1;
/* rgb */ color: rgb(85, 91, 225);
/* oklch */ color: oklch(54.5% 0.200 275.6);

Tailwind

colors: {
  custom: {
    50: '#9389eb',
    500: '#555be1',
    950: '#000000',
  },
}

SCSS

$custom: #555be1;
$custom-light: #9389eb;
$custom-dark: #000000;

JSON

{
  "hex": "#555be1",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 225
  },
  "hsl": {
    "h": 237.429,
    "s": 70,
    "l": 60.784
  },
  "oklch": {
    "l": 0.54475,
    "c": 0.19987,
    "h": 275.6
  },
  "luminance": 0.1485
}

Semantic roles & 50–950 ramp

primary

#555BE1

secondary

#E3E1AE

accent

#CA14D2

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BE1

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

Preview Lab → · Contrast checker → · Palette generator →