#3556B3#3556B3

#3556B3 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.1% C 0.153 H 266.1°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3556B3
RGB	rgb(53, 86, 179)
HSL	hsl(224, 54%, 45%)
HSV	hsv(224, 70%, 70%)
CMYK	cmyk(70.4%, 52%, 0%, 29.8%)
CIE-LAB	lab(39.01, 20.03, -53.03)
CIE-LCH	lch(39.01, 56.69, 290.69°)
OKLab	oklab(48.15% -0.0104 -0.1524)
OKLCH	oklch(48.15% 0.153 266.1)
XYZ	xyz(12.9298, 10.6658, 44.0164)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3556B3 #B39235

analogous

#3595B3 #3556B3 #5335B3

triadic

#3556B3 #B33556 #56B335

tetradic

#3556B3 #B33595 #B39235 #35B353

square

#3556B3 #B33595 #B39235 #35B353

split-complementary

#3556B3 #B35335 #95B335

monochromatic

#192955 #273F84 #3556B3 #5877CD #879DDB

Accessibility & contrast

On white

6.70

#3556B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3556B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3556B3

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3556B3	#FFFFFF	#000000	##FFFFFF
##3556B3	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B62B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3556b3;
/* rgb */ color: rgb(53, 86, 179);
/* oklch */ color: oklch(48.1% 0.153 266.1);

Tailwind

colors: {
  custom: {
    50: '#7c85ca',
    500: '#3556b3',
    950: '#000000',
  },
}

SCSS

$custom: #3556b3;
$custom-light: #7c85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3556b3",
  "rgb": {
    "r": 53,
    "g": 86,
    "b": 179
  },
  "hsl": {
    "h": 224.286,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48145,
    "c": 0.15277,
    "h": 266.1
  },
  "luminance": 0.10667
}

Semantic roles & 50–950 ramp

primary

#3556B3

secondary

#C5B37F

accent

#B74ADE

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3556B3

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

Preview Lab → · Contrast checker → · Palette generator →