#3550BE#3550BE

#3550BE is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.8% C 0.175 H 268.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3550BE
RGB	rgb(53, 80, 190)
HSL	hsl(228, 56%, 48%)
HSV	hsv(228, 72%, 75%)
CMYK	cmyk(72.1%, 57.9%, 0%, 25.5%)
CIE-LAB	lab(38.22, 28.00, -60.78)
CIE-LCH	lch(38.22, 66.92, 294.74°)
OKLab	oklab(47.8% -0.0048 -0.1753)
OKLCH	oklch(47.8% 0.175 268.4)
XYZ	xyz(13.6279, 10.2105, 49.9578)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550BE #BEA335

analogous

#3595BE #3550BE #5E35BE

triadic

#3550BE #BE3550 #50BE35

tetradic

#3550BE #BE3595 #BEA335 #35BE5E

square

#3550BE #BE3595 #BEA335 #35BE5E

split-complementary

#3550BE #BE5E35 #95BE35

monochromatic

#1A285E #283C8E #3550BE #5E75D2 #8E9EDF

Accessibility & contrast

On white

6.90

#3550BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3550BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550BE

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550BE	#FFFFFF	#000000	##FFFFFF
##3550BE	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C2

Deuteranopia (green-blind)

#0054BC

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3550be;
/* rgb */ color: rgb(53, 80, 190);
/* oklch */ color: oklch(47.8% 0.175 268.4);

Tailwind

colors: {
  custom: {
    50: '#7f80d2',
    500: '#3550be',
    950: '#000000',
  },
}

SCSS

$custom: #3550be;
$custom-light: #7f80d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3550be",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 190
  },
  "hsl": {
    "h": 228.175,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47802,
    "c": 0.17534,
    "h": 268.4
  },
  "luminance": 0.10212
}

Semantic roles & 50–950 ramp

primary

#3550BE

secondary

#CABC85

accent

#C248E0

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3550BE

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

Preview Lab → · Contrast checker → · Palette generator →