#3550C1#3550C1

#3550C1 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 48.0% C 0.179 H 268.5°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3550C1
RGB	rgb(53, 80, 193)
HSL	hsl(228, 57%, 48%)
HSV	hsv(228, 73%, 76%)
CMYK	cmyk(72.5%, 58.5%, 0%, 24.3%)
CIE-LAB	lab(38.45, 29.10, -62.15)
CIE-LCH	lch(38.45, 68.63, 295.09°)
OKLab	oklab(48.05% -0.0048 -0.1793)
OKLCH	oklch(48.05% 0.179 268.5)
XYZ	xyz(13.9592, 10.3430, 51.7025)
Luminance	0.1034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550C1 #C1A635

analogous

#3596C1 #3550C1 #6035C1

triadic

#3550C1 #C13550 #50C135

tetradic

#3550C1 #C13596 #C1A635 #35C160

square

#3550C1 #C13596 #C1A635 #35C160

split-complementary

#3550C1 #C16035 #96C135

monochromatic

#1B2861 #283C91 #3550C1 #6076D3 #909FE0

Accessibility & contrast

On white

6.84

#3550C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3550C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550C1

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550C1	#FFFFFF	#000000	##FFFFFF
##3550C1	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C5

Deuteranopia (green-blind)

#0054BF

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3550c1;
/* rgb */ color: rgb(53, 80, 193);
/* oklch */ color: oklch(48.0% 0.179 268.5);

Tailwind

colors: {
  custom: {
    50: '#7f80d5',
    500: '#3550c1',
    950: '#000000',
  },
}

SCSS

$custom: #3550c1;
$custom-light: #7f80d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3550c1",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 193
  },
  "hsl": {
    "h": 228.429,
    "s": 56.911,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4805,
    "c": 0.17937,
    "h": 268.5
  },
  "luminance": 0.10344
}

Semantic roles & 50–950 ramp

primary

#3550C1

secondary

#CBBE87

accent

#C348E0

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3550C1

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

Preview Lab → · Contrast checker → · Palette generator →