#5550BC#5550BC

#5550BC is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.7% C 0.165 H 280.6°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#5550BC
RGB	rgb(85, 80, 188)
HSL	hsl(243, 45%, 53%)
HSV	hsv(243, 57%, 74%)
CMYK	cmyk(54.8%, 57.4%, 0%, 26.3%)
CIE-LAB	lab(40.08, 32.56, -56.50)
CIE-LCH	lch(40.08, 65.21, 299.96°)
OKLab	oklab(49.67% 0.0304 -0.1619)
OKLCH	oklch(49.67% 0.165 280.6)
XYZ	xyz(15.6893, 11.2985, 48.9213)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5550BC #B7BC50

analogous

#5081BC #5550BC #8B50BC

triadic

#5550BC #BC5550 #50BC55

tetradic

#5550BC #BC5081 #B7BC50 #50BC8B

square

#5550BC #BC5081 #B7BC50 #50BC8B

split-complementary

#5550BC #BC8B50 #81BC50

monochromatic

#2B2869 #3E3996 #5550BC #807CCD #ABA9DE

Accessibility & contrast

On white

6.44

#5550BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#5550BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5550BC

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5550BC	#FFFFFF	#000000	##FFFFFF
##5550BC	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C0

Deuteranopia (green-blind)

#005ABA

Tritanopia (blue-blind)

#24697E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5550bc;
/* rgb */ color: rgb(85, 80, 188);
/* oklch */ color: oklch(49.7% 0.165 280.6);

Tailwind

colors: {
  custom: {
    50: '#8d81d1',
    500: '#5550bc',
    950: '#000000',
  },
}

SCSS

$custom: #5550bc;
$custom-light: #8d81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5550bc",
  "rgb": {
    "r": 85,
    "g": 80,
    "b": 188
  },
  "hsl": {
    "h": 242.778,
    "s": 44.628,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49666,
    "c": 0.1647,
    "h": 280.6
  },
  "luminance": 0.11299
}

Semantic roles & 50–950 ramp

primary

#5550BC

secondary

#C9CB9C

accent

#D453CE

background

#F9F7FC

surface

#F1EEF9

border

#CBC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5550BC

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

Preview Lab → · Contrast checker → · Palette generator →