#555CD1#555CD1

#555CD1 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.4% C 0.177 H 276.0°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#555CD1
RGB	rgb(85, 92, 209)
HSL	hsl(237, 57%, 58%)
HSV	hsv(237, 59%, 82%)
CMYK	cmyk(59.3%, 56%, 0%, 18%)
CIE-LAB	lab(44.50, 31.98, -61.50)
CIE-LCH	lch(44.50, 69.31, 297.47°)
OKLab	oklab(53.42% 0.0186 -0.1765)
OKLCH	oklch(53.42% 0.177 276)
XYZ	xyz(19.0784, 14.1876, 62.0424)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CD1 #D1CA55

analogous

#559AD1 #555CD1 #8C55D1

triadic

#555CD1 #D1555C #5CD155

tetradic

#555CD1 #D1559A #D1CA55 #55D18C

square

#555CD1 #D1559A #D1CA55 #55D18C

split-complementary

#555CD1 #D18C55 #9AD155

monochromatic

#252A87 #3239B7 #555CD1 #858ADE #B5B8EB

Accessibility & contrast

On white

5.47

#555CD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#555CD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CD1

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CD1	#FFFFFF	#000000	##FFFFFF
##555CD1	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD5

Deuteranopia (green-blind)

#0064CF

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555cd1;
/* rgb */ color: rgb(85, 92, 209);
/* oklch */ color: oklch(53.4% 0.177 276.0);

Tailwind

colors: {
  custom: {
    50: '#908ae0',
    500: '#555cd1',
    950: '#000000',
  },
}

SCSS

$custom: #555cd1;
$custom-light: #908ae0;
$custom-dark: #000000;

JSON

{
  "hex": "#555cd1",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 209
  },
  "hsl": {
    "h": 236.613,
    "s": 57.407,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53423,
    "c": 0.17747,
    "h": 276
  },
  "luminance": 0.14189
}

Semantic roles & 50–950 ramp

primary

#555CD1

secondary

#DAD7A8

accent

#D847E1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #555CD1

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

Preview Lab → · Contrast checker → · Palette generator →