#3557BE#3557BE

#3557BE is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.2% C 0.167 H 266.5°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3557BE
RGB	rgb(53, 87, 190)
HSL	hsl(225, 56%, 48%)
HSV	hsv(225, 72%, 75%)
CMYK	cmyk(72.1%, 54.2%, 0%, 25.5%)
CIE-LAB	lab(40.06, 23.45, -57.78)
CIE-LCH	lch(40.06, 62.36, 292.09°)
OKLab	oklab(49.19% -0.0103 -0.1664)
OKLCH	oklch(49.19% 0.167 266.5)
XYZ	xyz(14.1674, 11.2895, 50.1377)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3557BE #BE9C35

analogous

#359CBE #3557BE #5735BE

triadic

#3557BE #BE3557 #57BE35

tetradic

#3557BE #BE359C #BE9C35 #35BE57

square

#3557BE #BE359C #BE9C35 #35BE57

split-complementary

#3557BE #BE5735 #9CBE35

monochromatic

#1A2B5E #28418E #3557BE #5E7BD2 #8EA2DF

Accessibility & contrast

On white

6.45

#3557BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3557BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3557BE

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3557BE	#FFFFFF	#000000	##FFFFFF
##3557BE	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0165C2

Deuteranopia (green-blind)

#0058BC

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3557be;
/* rgb */ color: rgb(53, 87, 190);
/* oklch */ color: oklch(49.2% 0.167 266.5);

Tailwind

colors: {
  custom: {
    50: '#7e85d2',
    500: '#3557be',
    950: '#000000',
  },
}

SCSS

$custom: #3557be;
$custom-light: #7e85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3557be",
  "rgb": {
    "r": 53,
    "g": 87,
    "b": 190
  },
  "hsl": {
    "h": 225.109,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.49189,
    "c": 0.16668,
    "h": 266.5
  },
  "luminance": 0.11291
}

Semantic roles & 50–950 ramp

primary

#3557BE

secondary

#CAB985

accent

#BA48E0

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3557BE

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

Preview Lab → · Contrast checker → · Palette generator →