#3556AB#3556AB

#3556AB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.6% C 0.142 H 265.4°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3556AB
RGB	rgb(53, 86, 171)
HSL	hsl(223, 53%, 44%)
HSV	hsv(223, 69%, 67%)
CMYK	cmyk(69%, 49.7%, 0%, 32.9%)
CIE-LAB	lab(38.47, 17.07, -49.19)
CIE-LCH	lch(38.47, 52.06, 289.13°)
OKLab	oklab(47.56% -0.0114 -0.1411)
OKLCH	oklch(47.56% 0.142 265.4)
XYZ	xyz(12.1441, 10.3515, 39.8782)
Luminance	0.1035 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3556AB #AB8A35

analogous

#3591AB #3556AB #4F35AB

triadic

#3556AB #AB3556 #56AB35

tetradic

#3556AB #AB3591 #AB8A35 #35AB4F

square

#3556AB #AB3591 #AB8A35 #35AB4F

split-complementary

#3556AB #AB4F35 #91AB35

monochromatic

#18274E #273F7C #3556AB #5375CA #829AD8

Accessibility & contrast

On white

6.84

#3556AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3556AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3556AB

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3556AB	#FFFFFF	#000000	##FFFFFF
##3556AB	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)

#2760AE

Deuteranopia (green-blind)

#0155A9

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3556ab;
/* rgb */ color: rgb(53, 86, 171);
/* oklch */ color: oklch(47.6% 0.142 265.4);

Tailwind

colors: {
  custom: {
    50: '#7a85c5',
    500: '#3556ab',
    950: '#000000',
  },
}

SCSS

$custom: #3556ab;
$custom-light: #7a85c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3556ab",
  "rgb": {
    "r": 53,
    "g": 86,
    "b": 171
  },
  "hsl": {
    "h": 223.22,
    "s": 52.679,
    "l": 43.922
  },
  "oklch": {
    "l": 0.47556,
    "c": 0.14155,
    "h": 265.4
  },
  "luminance": 0.10353
}

Semantic roles & 50–950 ramp

primary

#3556AB

secondary

#C2AE7A

accent

#B44CDC

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3556AB

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

Preview Lab → · Contrast checker → · Palette generator →