#555DC9#555DC9

#555DC9 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.0% C 0.165 H 276.0°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#555DC9
RGB	rgb(85, 93, 201)
HSL	hsl(236, 52%, 56%)
HSV	hsv(236, 58%, 79%)
CMYK	cmyk(57.7%, 53.7%, 0%, 21.2%)
CIE-LAB	lab(44.20, 28.72, -57.39)
CIE-LCH	lch(44.20, 64.17, 296.58°)
OKLab	oklab(53.02% 0.0173 -0.1644)
OKLCH	oklch(53.02% 0.165 276)
XYZ	xyz(18.1999, 13.9757, 56.9855)
Luminance	0.1398 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DC9 #C9C155

analogous

#5597C9 #555DC9 #8755C9

triadic

#555DC9 #C9555D #5DC955

tetradic

#555DC9 #C95597 #C9C155 #55C987

square

#555DC9 #C95597 #C9C155 #55C987

split-complementary

#555DC9 #C98755 #97C955

monochromatic

#272D7C #363EAB #555DC9 #8389D8 #B2B6E7

Accessibility & contrast

On white

5.53

#555DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#555DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DC9

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DC9	#FFFFFF	#000000	##FFFFFF
##555DC9	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#186DCD

Deuteranopia (green-blind)

#0064C7

Tritanopia (blue-blind)

#04768A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #555dc9;
/* rgb */ color: rgb(85, 93, 201);
/* oklch */ color: oklch(53.0% 0.165 276.0);

Tailwind

colors: {
  custom: {
    50: '#8f8ada',
    500: '#555dc9',
    950: '#000000',
  },
}

SCSS

$custom: #555dc9;
$custom-light: #8f8ada;
$custom-dark: #000000;

JSON

{
  "hex": "#555dc9",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 201
  },
  "hsl": {
    "h": 235.862,
    "s": 51.786,
    "l": 56.078
  },
  "oklch": {
    "l": 0.53021,
    "c": 0.1653,
    "h": 276
  },
  "luminance": 0.13977
}

Semantic roles & 50–950 ramp

primary

#555DC9

secondary

#D5D2A5

accent

#D14DDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #555DC9

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

Preview Lab → · Contrast checker → · Palette generator →