#555BC8#555BC8

#555BC8 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.6% C 0.167 H 276.7°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#555BC8
RGB	rgb(85, 91, 200)
HSL	hsl(237, 51%, 56%)
HSV	hsv(237, 58%, 78%)
CMYK	cmyk(57.5%, 54.5%, 0%, 21.6%)
CIE-LAB	lab(43.63, 29.63, -57.73)
CIE-LCH	lch(43.63, 64.89, 297.17°)
OKLab	oklab(52.57% 0.0193 -0.1654)
OKLCH	oklch(52.57% 0.167 276.7)
XYZ	xyz(17.9094, 13.5823, 56.3103)
Luminance	0.1358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BC8 #C8C255

analogous

#5594C8 #555BC8 #8855C8

triadic

#555BC8 #C8555B #5BC855

tetradic

#555BC8 #C85594 #C8C255 #55C888

square

#555BC8 #C85594 #C8C255 #55C888

split-complementary

#555BC8 #C88855 #94C855

monochromatic

#282C7B #373DA9 #555BC8 #8388D7 #B1B4E6

Accessibility & contrast

On white

5.65

#555BC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#555BC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BC8

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BC8	#FFFFFF	#000000	##FFFFFF
##555BC8	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#116CCC

Deuteranopia (green-blind)

#0062C6

Tritanopia (blue-blind)

#097489

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #555bc8;
/* rgb */ color: rgb(85, 91, 200);
/* oklch */ color: oklch(52.6% 0.167 276.7);

Tailwind

colors: {
  custom: {
    50: '#8f89d9',
    500: '#555bc8',
    950: '#000000',
  },
}

SCSS

$custom: #555bc8;
$custom-light: #8f89d9;
$custom-dark: #000000;

JSON

{
  "hex": "#555bc8",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 200
  },
  "hsl": {
    "h": 236.87,
    "s": 51.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.52573,
    "c": 0.16654,
    "h": 276.7
  },
  "luminance": 0.13584
}

Semantic roles & 50–950 ramp

primary

#555BC8

secondary

#D4D2A5

accent

#D34DDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555BC8

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

Preview Lab → · Contrast checker → · Palette generator →