#3553AB#3553AB

#3553AB is a mid, vivid blue. Relative luminance 0.099; OKLCH L 46.9% C 0.145 H 266.6°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#3553AB
RGB	rgb(53, 83, 171)
HSL	hsl(225, 53%, 44%)
HSV	hsv(225, 69%, 67%)
CMYK	cmyk(69%, 51.5%, 0%, 32.9%)
CIE-LAB	lab(37.63, 19.03, -50.53)
CIE-LCH	lch(37.63, 54.00, 290.64°)
OKLab	oklab(46.92% -0.0086 -0.1451)
OKLCH	oklch(46.92% 0.145 266.6)
XYZ	xyz(11.9096, 9.8825, 39.8001)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553AB #AB8D35

analogous

#358EAB #3553AB #5235AB

triadic

#3553AB #AB3553 #53AB35

tetradic

#3553AB #AB358E #AB8D35 #35AB52

square

#3553AB #AB358E #AB8D35 #35AB52

split-complementary

#3553AB #AB5235 #8EAB35

monochromatic

#18264E #273C7C #3553AB #5371CA #8298D8

Accessibility & contrast

On white

7.05

#3553AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3553AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3553AB

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553AB	#FFFFFF	#000000	##FFFFFF
##3553AB	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5EAE

Deuteranopia (green-blind)

#0053A9

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3553ab;
/* rgb */ color: rgb(53, 83, 171);
/* oklch */ color: oklch(46.9% 0.145 266.6);

Tailwind

colors: {
  custom: {
    50: '#7a82c5',
    500: '#3553ab',
    950: '#000000',
  },
}

SCSS

$custom: #3553ab;
$custom-light: #7a82c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3553ab",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 171
  },
  "hsl": {
    "h": 224.746,
    "s": 52.679,
    "l": 43.922
  },
  "oklch": {
    "l": 0.4692,
    "c": 0.14535,
    "h": 266.6
  },
  "luminance": 0.09884
}

Semantic roles & 50–950 ramp

primary

#3553AB

secondary

#C2B07A

accent

#B74CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3553AB

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

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