#553FDD#553FDD

#553FDD is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 49.8% C 0.227 H 280.6°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#553FDD
RGB	rgb(85, 63, 221)
HSL	hsl(248, 70%, 56%)
HSV	hsv(248, 71%, 87%)
CMYK	cmyk(61.5%, 71.5%, 0%, 13.3%)
CIE-LAB	lab(39.08, 52.72, -77.22)
CIE-LCH	lch(39.08, 93.50, 304.32°)
OKLab	oklab(49.77% 0.0417 -0.2227)
OKLCH	oklch(49.77% 0.227 280.6)
XYZ	xyz(18.5708, 10.7054, 69.4803)
Luminance	0.1071 (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

#553FDD #C7DD3F

analogous

#3F78DD #553FDD #A43FDD

triadic

#553FDD #DD553F #3FDD55

tetradic

#553FDD #DD3F78 #C7DD3F #3FDDA4

square

#553FDD #DD3F78 #C7DD3F #3FDDA4

split-complementary

#553FDD #DDA43F #78DD3F

monochromatic

#281889 #3722BD #553FDD #8373E6 #B1A7EF

Accessibility & contrast

On white

6.68

#553FDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#553FDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #553FDD

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##553FDD	#FFFFFF	#000000	##FFFFFF
##553FDD	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E2

Deuteranopia (green-blind)

#0056DA

Tritanopia (blue-blind)

#006B8A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #553fdd;
/* rgb */ color: rgb(85, 63, 221);
/* oklch */ color: oklch(49.8% 0.227 280.6);

Tailwind

colors: {
  custom: {
    50: '#9477e9',
    500: '#553fdd',
    950: '#000000',
  },
}

SCSS

$custom: #553fdd;
$custom-light: #9477e9;
$custom-dark: #000000;

JSON

{
  "hex": "#553fdd",
  "rgb": {
    "r": 85,
    "g": 63,
    "b": 221
  },
  "hsl": {
    "h": 248.354,
    "s": 69.912,
    "l": 55.686
  },
  "oklch": {
    "l": 0.49772,
    "c": 0.22659,
    "h": 280.6
  },
  "luminance": 0.10707
}

Semantic roles & 50–950 ramp

primary

#553FDD

secondary

#D4DD9B

accent

#ED3BD4

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0916

muted

#7E7B84

Preview Lab

Preview with #553FDD

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

Preview Lab → · Contrast checker → · Palette generator →