#555BE4#555BE4

#555BE4 is a mid, highly saturated blue. Relative luminance 0.150; OKLCH L 54.7% C 0.204 H 275.5°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#555BE4
RGB	rgb(85, 91, 228)
HSL	hsl(237, 73%, 61%)
HSV	hsv(237, 63%, 89%)
CMYK	cmyk(62.7%, 60.1%, 0%, 10.6%)
CIE-LAB	lab(45.65, 38.85, -70.45)
CIE-LCH	lch(45.65, 80.45, 298.87°)
OKLab	oklab(54.71% 0.0194 -0.2028)
OKLCH	oklch(54.71% 0.204 275.5)
XYZ	xyz(21.4864, 15.0131, 75.1493)
Luminance	0.1502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BE4 #E4DE55

analogous

#55A2E4 #555BE4 #9755E4

triadic

#555BE4 #E4555B #5BE455

tetradic

#555BE4 #E455A2 #E4DE55 #55E497

square

#555BE4 #E455A2 #E4DE55 #55E497

split-complementary

#555BE4 #E49755 #A2E455

monochromatic

#1A20A4 #232AD9 #555BE4 #8A8EEC #BFC1F5

Accessibility & contrast

On white

5.25

#555BE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#555BE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BE4

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BE4	#FFFFFF	#000000	##FFFFFF
##555BE4	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E8

Deuteranopia (green-blind)

#0066E1

Tritanopia (blue-blind)

#007D97

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555be4;
/* rgb */ color: rgb(85, 91, 228);
/* oklch */ color: oklch(54.7% 0.204 275.5);

Tailwind

colors: {
  custom: {
    50: '#9389ed',
    500: '#555be4',
    950: '#000000',
  },
}

SCSS

$custom: #555be4;
$custom-light: #9389ed;
$custom-dark: #000000;

JSON

{
  "hex": "#555be4",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 228
  },
  "hsl": {
    "h": 237.483,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.54714,
    "c": 0.20375,
    "h": 275.5
  },
  "luminance": 0.15015
}

Semantic roles & 50–950 ramp

primary

#555BE4

secondary

#E5E3B0

accent

#CC11D5

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BE4

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

Preview Lab → · Contrast checker → · Palette generator →