#553DD5#553DD5

#553DD5 is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.8% C 0.219 H 281.8°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#553DD5
RGB	rgb(85, 61, 213)
HSL	hsl(249, 64%, 54%)
HSV	hsv(249, 71%, 84%)
CMYK	cmyk(60.1%, 71.4%, 0%, 16.5%)
CIE-LAB	lab(37.97, 51.39, -74.45)
CIE-LCH	lch(37.97, 90.46, 304.62°)
OKLab	oklab(48.76% 0.0447 -0.2146)
OKLCH	oklch(48.76% 0.219 281.8)
XYZ	xyz(17.4215, 10.0717, 63.9639)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 1.59

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#553DD5 #BDD53D

analogous

#3D71D5 #553DD5 #A13DD5

triadic

#553DD5 #D5553D #3DD555

tetradic

#553DD5 #D53D71 #BDD53D #3DD5A1

square

#553DD5 #D53D71 #BDD53D #3DD5A1

split-complementary

#553DD5 #D5A13D #71D53D

monochromatic

#2A1B7D #3C26AF #553DD5 #816FE0 #ADA2EB

Accessibility & contrast

On white

6.97

#553DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#553DD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #553DD5

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##553DD5	#FFFFFF	#000000	##FFFFFF
##553DD5	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED9

Deuteranopia (green-blind)

#0054D2

Tritanopia (blue-blind)

#006785

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #553dd5;
/* rgb */ color: rgb(85, 61, 213);
/* oklch */ color: oklch(48.8% 0.219 281.8);

Tailwind

colors: {
  custom: {
    50: '#9375e3',
    500: '#553dd5',
    950: '#000000',
  },
}

SCSS

$custom: #553dd5;
$custom-light: #9375e3;
$custom-dark: #000000;

JSON

{
  "hex": "#553dd5",
  "rgb": {
    "r": 85,
    "g": 61,
    "b": 213
  },
  "hsl": {
    "h": 249.474,
    "s": 64.407,
    "l": 53.725
  },
  "oklch": {
    "l": 0.48762,
    "c": 0.21921,
    "h": 281.8
  },
  "luminance": 0.10073
}

Semantic roles & 50–950 ramp

primary

#553DD5

secondary

#CDD796

accent

#E740CD

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #553DD5

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

Preview Lab → · Contrast checker → · Palette generator →