#555CD5#555CD5

#555CD5 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.7% C 0.183 H 275.9°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#555CD5
RGB	rgb(85, 92, 213)
HSL	hsl(237, 60%, 58%)
HSV	hsv(237, 60%, 84%)
CMYK	cmyk(60.1%, 56.8%, 0%, 16.5%)
CIE-LAB	lab(44.78, 33.30, -63.33)
CIE-LCH	lch(44.78, 71.55, 297.73°)
OKLab	oklab(53.72% 0.0187 -0.1819)
OKLCH	oklch(53.72% 0.183 275.9)
XYZ	xyz(19.5798, 14.3882, 64.6833)
Luminance	0.1439 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CD5 #D5CE55

analogous

#559CD5 #555CD5 #8E55D5

triadic

#555CD5 #D5555C #5CD555

tetradic

#555CD5 #D5559C #D5CE55 #55D58E

square

#555CD5 #D5559C #D5CE55 #55D58E

split-complementary

#555CD5 #D58E55 #9CD555

monochromatic

#23298D #2F37BE #555CD5 #868BE1 #B7BAED

Accessibility & contrast

On white

5.42

#555CD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#555CD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CD5

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CD5	#FFFFFF	#000000	##FFFFFF
##555CD5	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070D9

Deuteranopia (green-blind)

#0065D3

Tritanopia (blue-blind)

#00798F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555cd5;
/* rgb */ color: rgb(85, 92, 213);
/* oklch */ color: oklch(53.7% 0.183 275.9);

Tailwind

colors: {
  custom: {
    50: '#918ae3',
    500: '#555cd5',
    950: '#000000',
  },
}

SCSS

$custom: #555cd5;
$custom-light: #918ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#555cd5",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 213
  },
  "hsl": {
    "h": 236.719,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53724,
    "c": 0.18283,
    "h": 275.9
  },
  "luminance": 0.1439
}

Semantic roles & 50–950 ramp

primary

#555CD5

secondary

#DCDAA9

accent

#DB44E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B15

muted

#7E7C84

Preview Lab

Preview with #555CD5

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

Preview Lab → · Contrast checker → · Palette generator →