#555BC6#555BC6

#555BC6 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.4% C 0.164 H 276.7°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#555BC6
RGB	rgb(85, 91, 198)
HSL	hsl(237, 50%, 55%)
HSV	hsv(237, 57%, 78%)
CMYK	cmyk(57.1%, 54%, 0%, 22.4%)
CIE-LAB	lab(43.49, 28.98, -56.79)
CIE-LCH	lch(43.49, 63.76, 297.03°)
OKLab	oklab(52.43% 0.0192 -0.1627)
OKLCH	oklch(52.43% 0.164 276.7)
XYZ	xyz(17.6772, 13.4894, 55.0873)
Luminance	0.1349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC6 #C6C055

analogous

#5593C6 #555BC6 #8755C6

triadic

#555BC6 #C6555B #5BC655

tetradic

#555BC6 #C65593 #C6C055 #55C687

square

#555BC6 #C65593 #C6C055 #55C687

split-complementary

#555BC6 #C68755 #93C655

monochromatic

#282D78 #383EA6 #555BC6 #8387D5 #B1B3E5

Accessibility & contrast

On white

5.68

#555BC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#555BC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC6

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC6	#FFFFFF	#000000	##FFFFFF
##555BC6	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#166CCA

Deuteranopia (green-blind)

#0062C4

Tritanopia (blue-blind)

#107488

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555bc6;
/* rgb */ color: rgb(85, 91, 198);
/* oklch */ color: oklch(52.4% 0.164 276.7);

Tailwind

colors: {
  custom: {
    50: '#8e89d8',
    500: '#555bc6',
    950: '#000000',
  },
}

SCSS

$custom: #555bc6;
$custom-light: #8e89d8;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc6",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 198
  },
  "hsl": {
    "h": 236.814,
    "s": 49.78,
    "l": 55.49
  },
  "oklch": {
    "l": 0.52428,
    "c": 0.16379,
    "h": 276.7
  },
  "luminance": 0.13491
}

Semantic roles & 50–950 ramp

primary

#555BC6

secondary

#D3D0A4

accent

#D24ED9

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #555BC6

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

Preview Lab → · Contrast checker → · Palette generator →