#3553BD#3553BD

#3553BD is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.3% C 0.170 H 267.6°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3553BD
RGB	rgb(53, 83, 189)
HSL	hsl(227, 56%, 47%)
HSV	hsv(227, 72%, 74%)
CMYK	cmyk(72%, 56.1%, 0%, 25.9%)
CIE-LAB	lab(38.93, 25.69, -59.04)
CIE-LCH	lch(38.93, 64.39, 293.51°)
OKLab	oklab(48.31% -0.0072 -0.1701)
OKLCH	oklch(48.31% 0.17 267.6)
XYZ	xyz(13.7436, 10.6161, 49.4590)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553BD #BD9F35

analogous

#3597BD #3553BD #5B35BD

triadic

#3553BD #BD3553 #53BD35

tetradic

#3553BD #BD3597 #BD9F35 #35BD5B

square

#3553BD #BD3597 #BD9F35 #35BD5B

split-complementary

#3553BD #BD5B35 #97BD35

monochromatic

#1A295D #283E8D #3553BD #5D77D2 #8D9FDF

Accessibility & contrast

On white

6.72

#3553BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3553BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553BD

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553BD	#FFFFFF	#000000	##FFFFFF
##3553BD	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3553bd;
/* rgb */ color: rgb(53, 83, 189);
/* oklch */ color: oklch(48.3% 0.170 267.6);

Tailwind

colors: {
  custom: {
    50: '#7e83d2',
    500: '#3553bd',
    950: '#000000',
  },
}

SCSS

$custom: #3553bd;
$custom-light: #7e83d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3553bd",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 189
  },
  "hsl": {
    "h": 226.765,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48309,
    "c": 0.17028,
    "h": 267.6
  },
  "luminance": 0.10618
}

Semantic roles & 50–950 ramp

primary

#3553BD

secondary

#CABA84

accent

#BE48DF

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3553BD

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

Preview Lab → · Contrast checker → · Palette generator →