#3553BE#3553BE

#3553BE is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.4% C 0.172 H 267.6°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3553BE
RGB	rgb(53, 83, 190)
HSL	hsl(227, 56%, 48%)
HSV	hsv(227, 72%, 75%)
CMYK	cmyk(72.1%, 56.3%, 0%, 25.5%)
CIE-LAB	lab(39.00, 26.05, -59.50)
CIE-LCH	lch(39.00, 64.96, 293.65°)
OKLab	oklab(48.39% -0.0071 -0.1715)
OKLCH	oklch(48.39% 0.172 267.6)
XYZ	xyz(13.8525, 10.6597, 50.0327)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553BE #BEA035

analogous

#3598BE #3553BE #5B35BE

triadic

#3553BE #BE3553 #53BE35

tetradic

#3553BE #BE3598 #BEA035 #35BE5B

square

#3553BE #BE3598 #BEA035 #35BE5B

split-complementary

#3553BE #BE5B35 #98BE35

monochromatic

#1A295E #283E8E #3553BE #5E77D2 #8EA0DF

Accessibility & contrast

On white

6.70

#3553BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3553BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553BE

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553BE	#FFFFFF	#000000	##FFFFFF
##3553BE	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C2

Deuteranopia (green-blind)

#0056BC

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3553be;
/* rgb */ color: rgb(53, 83, 190);
/* oklch */ color: oklch(48.4% 0.172 267.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3553be",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 190
  },
  "hsl": {
    "h": 226.861,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.48389,
    "c": 0.17164,
    "h": 267.6
  },
  "luminance": 0.10661
}

Semantic roles & 50–950 ramp

primary

#3553BE

secondary

#CABB85

accent

#BE48E0

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3553BE

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

Preview Lab → · Contrast checker → · Palette generator →