#3550C4#3550C4

#3550C4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.3% C 0.183 H 268.5°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3550C4
RGB	rgb(53, 80, 196)
HSL	hsl(229, 57%, 49%)
HSV	hsv(229, 73%, 77%)
CMYK	cmyk(73%, 59.2%, 0%, 23.1%)
CIE-LAB	lab(38.69, 30.19, -63.51)
CIE-LCH	lch(38.69, 70.33, 295.42°)
OKLab	oklab(48.3% -0.0047 -0.1833)
OKLCH	oklch(48.3% 0.183 268.5)
XYZ	xyz(14.2972, 10.4782, 53.4829)
Luminance	0.1048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550C4 #C4A935

analogous

#3598C4 #3550C4 #6235C4

triadic

#3550C4 #C43550 #50C435

tetradic

#3550C4 #C43598 #C4A935 #35C462

square

#3550C4 #C43598 #C4A935 #35C462

split-complementary

#3550C4 #C46235 #98C435

monochromatic

#1B2964 #283C94 #3550C4 #6277D4 #92A1E1

Accessibility & contrast

On white

6.78

#3550C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3550C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550C4

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550C4	#FFFFFF	#000000	##FFFFFF
##3550C4	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C8

Deuteranopia (green-blind)

#0055C2

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3550c4;
/* rgb */ color: rgb(53, 80, 196);
/* oklch */ color: oklch(48.3% 0.183 268.5);

Tailwind

colors: {
  custom: {
    50: '#8080d7',
    500: '#3550c4',
    950: '#000000',
  },
}

SCSS

$custom: #3550c4;
$custom-light: #8080d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3550c4",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 196
  },
  "hsl": {
    "h": 228.671,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.483,
    "c": 0.18337,
    "h": 268.5
  },
  "luminance": 0.1048
}

Semantic roles & 50–950 ramp

primary

#3550C4

secondary

#CCC088

accent

#C447E1

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3550C4

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

Preview Lab → · Contrast checker → · Palette generator →