#3555AC#3555AC

#3555AC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.4% C 0.144 H 265.9°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3555AC
RGB	rgb(53, 85, 172)
HSL	hsl(224, 53%, 44%)
HSV	hsv(224, 69%, 67%)
CMYK	cmyk(69.2%, 50.6%, 0%, 32.5%)
CIE-LAB	lab(38.25, 18.09, -50.12)
CIE-LCH	lch(38.25, 53.29, 289.85°)
OKLab	oklab(47.42% -0.0103 -0.1438)
OKLCH	oklch(47.42% 0.144 265.9)
XYZ	xyz(12.1605, 10.2312, 40.3557)
Luminance	0.1023 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555AC #AC8C35

analogous

#3591AC #3555AC #5135AC

triadic

#3555AC #AC3555 #55AC35

tetradic

#3555AC #AC3591 #AC8C35 #35AC51

square

#3555AC #AC3591 #AC8C35 #35AC51

split-complementary

#3555AC #AC5135 #91AC35

monochromatic

#18274E #273E7D #3555AC #5474CA #839AD9

Accessibility & contrast

On white

6.89

#3555AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3555AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555AC

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555AC	#FFFFFF	#000000	##FFFFFF
##3555AC	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2360AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3555ac;
/* rgb */ color: rgb(53, 85, 172);
/* oklch */ color: oklch(47.4% 0.144 265.9);

Tailwind

colors: {
  custom: {
    50: '#7a84c5',
    500: '#3555ac',
    950: '#000000',
  },
}

SCSS

$custom: #3555ac;
$custom-light: #7a84c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3555ac",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 172
  },
  "hsl": {
    "h": 223.866,
    "s": 52.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47416,
    "c": 0.14422,
    "h": 265.9
  },
  "luminance": 0.10232
}

Semantic roles & 50–950 ramp

primary

#3555AC

secondary

#C2AF7B

accent

#B54CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3555AC

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

Preview Lab → · Contrast checker → · Palette generator →