#555FE3#555FE3

#555FE3 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.3% C 0.198 H 274.6°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#555FE3
RGB	rgb(85, 95, 227)
HSL	hsl(236, 72%, 61%)
HSV	hsv(236, 63%, 89%)
CMYK	cmyk(62.6%, 58.1%, 0%, 11%)
CIE-LAB	lab(46.53, 36.08, -68.46)
CIE-LCH	lch(46.53, 77.39, 297.79°)
OKLab	oklab(55.34% 0.016 -0.197)
OKLCH	oklch(55.34% 0.198 274.6)
XYZ	xyz(21.6991, 15.6600, 74.5373)
Luminance	0.1566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FE3 #E3D955

analogous

#55A6E3 #555FE3 #9255E3

triadic

#555FE3 #E3555F #5FE355

tetradic

#555FE3 #E355A6 #E3D955 #55E392

square

#555FE3 #E355A6 #E3D955 #55E392

split-complementary

#555FE3 #E39255 #A6E355

monochromatic

#1B24A3 #2330D7 #555FE3 #8A90EC #BEC2F4

Accessibility & contrast

On white

5.08

#555FE3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#555FE3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FE3

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FE3	#FFFFFF	#000000	##FFFFFF
##555FE3	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E7

Deuteranopia (green-blind)

#0068E0

Tritanopia (blue-blind)

#007F98

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #555fe3;
/* rgb */ color: rgb(85, 95, 227);
/* oklch */ color: oklch(55.3% 0.198 274.6);

Tailwind

colors: {
  custom: {
    50: '#938ced',
    500: '#555fe3',
    950: '#000000',
  },
}

SCSS

$custom: #555fe3;
$custom-light: #938ced;
$custom-dark: #000000;

JSON

{
  "hex": "#555fe3",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 227
  },
  "hsl": {
    "h": 235.775,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.55336,
    "c": 0.19761,
    "h": 274.6
  },
  "luminance": 0.15662
}

Semantic roles & 50–950 ramp

primary

#555FE3

secondary

#E5E1AF

accent

#C612D4

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555FE3

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

Preview Lab → · Contrast checker → · Palette generator →