#555DD9#555DD9

#555DD9 is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.2% C 0.187 H 275.5°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#555DD9
RGB	rgb(85, 93, 217)
HSL	hsl(236, 63%, 59%)
HSV	hsv(236, 61%, 85%)
CMYK	cmyk(60.8%, 57.1%, 0%, 14.9%)
CIE-LAB	lab(45.32, 34.00, -64.75)
CIE-LCH	lch(45.32, 73.13, 297.70°)
OKLab	oklab(54.21% 0.0178 -0.186)
OKLCH	oklch(54.21% 0.187 275.5)
XYZ	xyz(20.1810, 14.7682, 67.4192)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DD9 #D9D155

analogous

#559FD9 #555DD9 #8F55D9

triadic

#555DD9 #D9555D #5DD955

tetradic

#555DD9 #D9559F #D9D155 #55D98F

square

#555DD9 #D9559F #D9D155 #55D98F

split-complementary

#555DD9 #D98F55 #9FD955

monochromatic

#212893 #2C35C5 #555DD9 #878DE4 #B9BCEF

Accessibility & contrast

On white

5.31

#555DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#555DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DD9

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DD9	#FFFFFF	#000000	##FFFFFF
##555DD9	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DD

Deuteranopia (green-blind)

#0066D6

Tritanopia (blue-blind)

#007B92

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555dd9;
/* rgb */ color: rgb(85, 93, 217);
/* oklch */ color: oklch(54.2% 0.187 275.5);

Tailwind

colors: {
  custom: {
    50: '#918be6',
    500: '#555dd9',
    950: '#000000',
  },
}

SCSS

$custom: #555dd9;
$custom-light: #918be6;
$custom-dark: #000000;

JSON

{
  "hex": "#555dd9",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 217
  },
  "hsl": {
    "h": 236.364,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.54209,
    "c": 0.1869,
    "h": 275.5
  },
  "luminance": 0.1477
}

Semantic roles & 50–950 ramp

primary

#555DD9

secondary

#DFDCAB

accent

#DC41E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #555DD9

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

Preview Lab → · Contrast checker → · Palette generator →