#555FD1#555FD1

#555FD1 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.0% C 0.174 H 275.2°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#555FD1
RGB	rgb(85, 95, 209)
HSL	hsl(235, 57%, 58%)
HSV	hsv(235, 59%, 82%)
CMYK	cmyk(59.3%, 54.5%, 0%, 18%)
CIE-LAB	lab(45.25, 30.12, -60.29)
CIE-LCH	lch(45.25, 67.40, 296.54°)
OKLab	oklab(53.98% 0.0157 -0.1729)
OKLCH	oklch(53.98% 0.174 275.2)
XYZ	xyz(19.3434, 14.7177, 62.1307)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FD1 #D1C755

analogous

#559DD1 #555FD1 #8955D1

triadic

#555FD1 #D1555F #5FD155

tetradic

#555FD1 #D1559D #D1C755 #55D189

square

#555FD1 #D1559D #D1C755 #55D189

split-complementary

#555FD1 #D18955 #9DD155

monochromatic

#252C87 #323CB7 #555FD1 #858CDE #B5BAEB

Accessibility & contrast

On white

5.32

#555FD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#555FD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FD1

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FD1	#FFFFFF	#000000	##FFFFFF
##555FD1	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C71D5

Deuteranopia (green-blind)

#0066CF

Tritanopia (blue-blind)

#007A8F

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #555fd1;
/* rgb */ color: rgb(85, 95, 209);
/* oklch */ color: oklch(54.0% 0.174 275.2);

Tailwind

colors: {
  custom: {
    50: '#908ce0',
    500: '#555fd1',
    950: '#000000',
  },
}

SCSS

$custom: #555fd1;
$custom-light: #908ce0;
$custom-dark: #000000;

JSON

{
  "hex": "#555fd1",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 209
  },
  "hsl": {
    "h": 235.161,
    "s": 57.407,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53978,
    "c": 0.17363,
    "h": 275.2
  },
  "luminance": 0.14719
}

Semantic roles & 50–950 ramp

primary

#555FD1

secondary

#DAD6A8

accent

#D447E1

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #555FD1

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

Preview Lab → · Contrast checker → · Palette generator →