#555CD9#555CD9

#555CD9 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.0% C 0.188 H 275.7°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#555CD9
RGB	rgb(85, 92, 217)
HSL	hsl(237, 63%, 59%)
HSV	hsv(237, 61%, 85%)
CMYK	cmyk(60.8%, 57.6%, 0%, 14.9%)
CIE-LAB	lab(45.07, 34.61, -65.14)
CIE-LCH	lch(45.07, 73.77, 297.98°)
OKLab	oklab(54.03% 0.0187 -0.1872)
OKLCH	oklch(54.03% 0.188 275.7)
XYZ	xyz(20.0938, 14.5938, 67.3902)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CD9 #D9D255

analogous

#559ED9 #555CD9 #9055D9

triadic

#555CD9 #D9555C #5CD955

tetradic

#555CD9 #D9559E #D9D255 #55D990

square

#555CD9 #D9559E #D9D255 #55D990

split-complementary

#555CD9 #D99055 #9ED955

monochromatic

#212793 #2C34C5 #555CD9 #878CE4 #B9BCEF

Accessibility & contrast

On white

5.36

#555CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#555CD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CD9

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CD9	#FFFFFF	#000000	##FFFFFF
##555CD9	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070DD

Deuteranopia (green-blind)

#0065D6

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555cd9;
/* rgb */ color: rgb(85, 92, 217);
/* oklch */ color: oklch(54.0% 0.188 275.7);

Tailwind

colors: {
  custom: {
    50: '#918ae6',
    500: '#555cd9',
    950: '#000000',
  },
}

SCSS

$custom: #555cd9;
$custom-light: #918ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#555cd9",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 217
  },
  "hsl": {
    "h": 236.818,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.54029,
    "c": 0.18815,
    "h": 275.7
  },
  "luminance": 0.14595
}

Semantic roles & 50–950 ramp

primary

#555CD9

secondary

#DFDCAB

accent

#DE41E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555CD9

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

Preview Lab → · Contrast checker → · Palette generator →