#3553C0#3553C0

#3553C0 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.5% C 0.174 H 267.7°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#3553C0
RGB	rgb(53, 83, 192)
HSL	hsl(227, 57%, 48%)
HSV	hsv(227, 72%, 75%)
CMYK	cmyk(72.4%, 56.8%, 0%, 24.7%)
CIE-LAB	lab(39.15, 26.79, -60.43)
CIE-LCH	lch(39.15, 66.10, 293.91°)
OKLab	oklab(48.55% -0.007 -0.1742)
OKLCH	oklch(48.55% 0.174 267.7)
XYZ	xyz(14.0726, 10.7477, 51.1918)
Luminance	0.1075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553C0 #C0A235

analogous

#3599C0 #3553C0 #5C35C0

triadic

#3553C0 #C03553 #53C035

tetradic

#3553C0 #C03599 #C0A235 #35C05C

square

#3553C0 #C03599 #C0A235 #35C05C

split-complementary

#3553C0 #C05C35 #99C035

monochromatic

#1B2A60 #283E90 #3553C0 #5F78D3 #8FA1E0

Accessibility & contrast

On white

6.67

#3553C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#3553C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553C0

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553C0	#FFFFFF	#000000	##FFFFFF
##3553C0	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C4

Deuteranopia (green-blind)

#0056BE

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3553c0;
/* rgb */ color: rgb(53, 83, 192);
/* oklch */ color: oklch(48.5% 0.174 267.7);

Tailwind

colors: {
  custom: {
    50: '#7f83d4',
    500: '#3553c0',
    950: '#000000',
  },
}

SCSS

$custom: #3553c0;
$custom-light: #7f83d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3553c0",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 192
  },
  "hsl": {
    "h": 227.05,
    "s": 56.735,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4855,
    "c": 0.17434,
    "h": 267.7
  },
  "luminance": 0.10749
}

Semantic roles & 50–950 ramp

primary

#3553C0

secondary

#CBBC86

accent

#BF48E0

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3553C0

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

Preview Lab → · Contrast checker → · Palette generator →