#555FD5#555FD5

#555FD5 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.3% C 0.179 H 275.1°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#555FD5
RGB	rgb(85, 95, 213)
HSL	hsl(235, 60%, 58%)
HSV	hsv(235, 60%, 84%)
CMYK	cmyk(60.1%, 55.4%, 0%, 16.5%)
CIE-LAB	lab(45.52, 31.44, -62.13)
CIE-LCH	lch(45.52, 69.63, 296.84°)
OKLab	oklab(54.27% 0.0158 -0.1783)
OKLCH	oklch(54.27% 0.179 275.1)
XYZ	xyz(19.8448, 14.9183, 64.7716)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555FD5 #D5CB55

analogous

#559FD5 #555FD5 #8B55D5

triadic

#555FD5 #D5555F #5FD555

tetradic

#555FD5 #D5559F #D5CB55 #55D58B

square

#555FD5 #D5559F #D5CB55 #55D58B

split-complementary

#555FD5 #D58B55 #9FD555

monochromatic

#232B8D #2F3ABE #555FD5 #868DE1 #B7BBED

Accessibility & contrast

On white

5.27

#555FD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#555FD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555FD5

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555FD5	#FFFFFF	#000000	##FFFFFF
##555FD5	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071D9

Deuteranopia (green-blind)

#0066D3

Tritanopia (blue-blind)

#007B91

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #555fd5;
/* rgb */ color: rgb(85, 95, 213);
/* oklch */ color: oklch(54.3% 0.179 275.1);

Tailwind

colors: {
  custom: {
    50: '#918ce3',
    500: '#555fd5',
    950: '#000000',
  },
}

SCSS

$custom: #555fd5;
$custom-light: #918ce3;
$custom-dark: #000000;

JSON

{
  "hex": "#555fd5",
  "rgb": {
    "r": 85,
    "g": 95,
    "b": 213
  },
  "hsl": {
    "h": 235.313,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.54273,
    "c": 0.17903,
    "h": 275.1
  },
  "luminance": 0.1492
}

Semantic roles & 50–950 ramp

primary

#555FD5

secondary

#DCD8A9

accent

#D744E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C15

muted

#7E7D84

Preview Lab

Preview with #555FD5

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

Preview Lab → · Contrast checker → · Palette generator →