#553DD9#553DD9

#553DD9 is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 49.1% C 0.224 H 281.3°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#553DD9
RGB	rgb(85, 61, 217)
HSL	hsl(249, 67%, 55%)
HSV	hsv(249, 72%, 85%)
CMYK	cmyk(60.8%, 71.9%, 0%, 14.9%)
CIE-LAB	lab(38.34, 52.58, -76.15)
CIE-LCH	lch(38.34, 92.54, 304.63°)
OKLab	oklab(49.13% 0.0439 -0.2196)
OKLCH	oklch(49.13% 0.224 281.3)
XYZ	xyz(17.9355, 10.2772, 66.6708)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.03

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#553DD9 #C1D93D

analogous

#3D73D9 #553DD9 #A33DD9

triadic

#553DD9 #D9553D #3DD955

tetradic

#553DD9 #D93D73 #C1D93D #3DD9A3

square

#553DD9 #D93D73 #C1D93D #3DD9A3

split-complementary

#553DD9 #D9A33D #73D93D

monochromatic

#2A1982 #3A24B5 #553DD9 #8270E3 #AFA3ED

Accessibility & contrast

On white

6.87

#553DD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#553DD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #553DD9

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##553DD9	#FFFFFF	#000000	##FFFFFF
##553DD9	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DE

Deuteranopia (green-blind)

#0054D6

Tritanopia (blue-blind)

#006887

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #553dd9;
/* rgb */ color: rgb(85, 61, 217);
/* oklch */ color: oklch(49.1% 0.224 281.3);

Tailwind

colors: {
  custom: {
    50: '#9475e6',
    500: '#553dd9',
    950: '#000000',
  },
}

SCSS

$custom: #553dd9;
$custom-light: #9475e6;
$custom-dark: #000000;

JSON

{
  "hex": "#553dd9",
  "rgb": {
    "r": 85,
    "g": 61,
    "b": 217
  },
  "hsl": {
    "h": 249.231,
    "s": 67.241,
    "l": 54.51
  },
  "oklch": {
    "l": 0.49132,
    "c": 0.22393,
    "h": 281.3
  },
  "luminance": 0.10279
}

Semantic roles & 50–950 ramp

primary

#553DD9

secondary

#D0DA98

accent

#EA3ED0

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0816

muted

#7E7B84

Preview Lab

Preview with #553DD9

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

Preview Lab → · Contrast checker → · Palette generator →