#553FDA#553FDA

#553FDA is a mid, highly saturated blue. Relative luminance 0.105; OKLCH L 49.5% C 0.223 H 280.9°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#553FDA
RGB	rgb(85, 63, 218)
HSL	hsl(249, 68%, 55%)
HSV	hsv(249, 71%, 85%)
CMYK	cmyk(61%, 71.1%, 0%, 14.5%)
CIE-LAB	lab(38.81, 51.82, -75.95)
CIE-LCH	lch(38.81, 91.95, 304.31°)
OKLab	oklab(49.49% 0.0423 -0.219)
OKLCH	oklch(49.49% 0.223 280.9)
XYZ	xyz(18.1747, 10.5469, 67.3941)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#553FDA #C4DA3F

analogous

#3F77DA #553FDA #A23FDA

triadic

#553FDA #DA553F #3FDA55

tetradic

#553FDA #DA3F77 #C4DA3F #3FDAA2

square

#553FDA #DA3F77 #C4DA3F #3FDAA2

split-complementary

#553FDA #DAA23F #77DA3F

monochromatic

#291A85 #3924B8 #553FDA #8272E4 #B0A6EE

Accessibility & contrast

On white

6.75

#553FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#553FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #553FDA

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##553FDA	#FFFFFF	#000000	##FFFFFF
##553FDA	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061DF

Deuteranopia (green-blind)

#0056D7

Tritanopia (blue-blind)

#006988

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #553fda;
/* rgb */ color: rgb(85, 63, 218);
/* oklch */ color: oklch(49.5% 0.223 280.9);

Tailwind

colors: {
  custom: {
    50: '#9477e7',
    500: '#553fda',
    950: '#000000',
  },
}

SCSS

$custom: #553fda;
$custom-light: #9477e7;
$custom-dark: #000000;

JSON

{
  "hex": "#553fda",
  "rgb": {
    "r": 85,
    "g": 63,
    "b": 218
  },
  "hsl": {
    "h": 248.516,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.49494,
    "c": 0.22305,
    "h": 280.9
  },
  "luminance": 0.10548
}

Semantic roles & 50–950 ramp

primary

#553FDA

secondary

#D2DB9A

accent

#EB3DD2

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0916

muted

#7E7B84

Preview Lab

Preview with #553FDA

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

Preview Lab → · Contrast checker → · Palette generator →