#3553B5#3553B5

#3553B5 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.7% C 0.159 H 267.2°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3553B5
RGB	rgb(53, 83, 181)
HSL	hsl(226, 55%, 46%)
HSV	hsv(226, 71%, 71%)
CMYK	cmyk(70.7%, 54.1%, 0%, 29%)
CIE-LAB	lab(38.34, 22.73, -55.30)
CIE-LCH	lch(38.34, 59.79, 292.35°)
OKLab	oklab(47.68% -0.0077 -0.1591)
OKLCH	oklch(47.68% 0.159 267.2)
XYZ	xyz(12.8991, 10.2783, 45.0112)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553B5 #B59735

analogous

#3593B5 #3553B5 #5735B5

triadic

#3553B5 #B53553 #53B535

tetradic

#3553B5 #B53593 #B59735 #35B557

square

#3553B5 #B53593 #B59735 #35B557

split-complementary

#3553B5 #B55735 #93B535

monochromatic

#192856 #273D86 #3553B5 #5974CE #889CDC

Accessibility & contrast

On white

6.87

#3553B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3553B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553B5

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553B5	#FFFFFF	#000000	##FFFFFF
##3553B5	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)

#0660B8

Deuteranopia (green-blind)

#0055B3

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3553b5;
/* rgb */ color: rgb(53, 83, 181);
/* oklch */ color: oklch(47.7% 0.159 267.2);

Tailwind

colors: {
  custom: {
    50: '#7c82cc',
    500: '#3553b5',
    950: '#000000',
  },
}

SCSS

$custom: #3553b5;
$custom-light: #7c82cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3553b5",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 181
  },
  "hsl": {
    "h": 225.938,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.4768,
    "c": 0.15932,
    "h": 267.2
  },
  "luminance": 0.1028
}

Semantic roles & 50–950 ramp

primary

#3553B5

secondary

#C6B680

accent

#BB4ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3553B5

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

Preview Lab → · Contrast checker → · Palette generator →