#3550BA#3550BA

#3550BA is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.170 H 268.3°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#3550BA
RGB	rgb(53, 80, 186)
HSL	hsl(228, 56%, 47%)
HSV	hsv(228, 72%, 73%)
CMYK	cmyk(71.5%, 57%, 0%, 27.1%)
CIE-LAB	lab(37.91, 26.54, -58.93)
CIE-LCH	lch(37.91, 64.63, 294.24°)
OKLab	oklab(47.48% -0.005 -0.1698)
OKLCH	oklch(47.48% 0.17 268.3)
XYZ	xyz(13.1967, 10.0380, 47.6869)
Luminance	0.1004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550BA #BA9F35

analogous

#3593BA #3550BA #5D35BA

triadic

#3550BA #BA3550 #50BA35

tetradic

#3550BA #BA3593 #BA9F35 #35BA5D

square

#3550BA #BA3593 #BA9F35 #35BA5D

split-complementary

#3550BA #BA5D35 #93BA35

monochromatic

#1A275B #273C8A #3550BA #5C73D0 #8B9CDE

Accessibility & contrast

On white

6.98

#3550BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#3550BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550BA

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550BA	#FFFFFF	#000000	##FFFFFF
##3550BA	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BE

Deuteranopia (green-blind)

#0053B8

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3550ba;
/* rgb */ color: rgb(53, 80, 186);
/* oklch */ color: oklch(47.5% 0.170 268.3);

Tailwind

colors: {
  custom: {
    50: '#7e80d0',
    500: '#3550ba',
    950: '#000000',
  },
}

SCSS

$custom: #3550ba;
$custom-light: #7e80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3550ba",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 186
  },
  "hsl": {
    "h": 227.82,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47476,
    "c": 0.16992,
    "h": 268.3
  },
  "luminance": 0.10039
}

Semantic roles & 50–950 ramp

primary

#3550BA

secondary

#C8BA82

accent

#C049DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3550BA

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

Preview Lab → · Contrast checker → · Palette generator →