#3556B7#3556B7

#3556B7 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.158 H 266.4°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3556B7
RGB	rgb(53, 86, 183)
HSL	hsl(225, 55%, 46%)
HSV	hsv(225, 71%, 72%)
CMYK	cmyk(71%, 53%, 0%, 28.2%)
CIE-LAB	lab(39.29, 21.51, -54.93)
CIE-LCH	lch(39.29, 58.99, 291.39°)
OKLab	oklab(48.45% -0.0101 -0.158)
OKLCH	oklch(48.45% 0.158 266.4)
XYZ	xyz(13.3402, 10.8300, 46.1779)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3556B7 #B79635

analogous

#3597B7 #3556B7 #5535B7

triadic

#3556B7 #B73556 #56B735

tetradic

#3556B7 #B73597 #B79635 #35B755

square

#3556B7 #B73597 #B79635 #35B755

split-complementary

#3556B7 #B75535 #97B735

monochromatic

#1A2958 #274088 #3556B7 #5A78CF #899FDD

Accessibility & contrast

On white

6.63

#3556B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3556B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3556B7

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3556B7	#FFFFFF	#000000	##FFFFFF
##3556B7	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1363BA

Deuteranopia (green-blind)

#0057B5

Tritanopia (blue-blind)

#006D7E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3556b7;
/* rgb */ color: rgb(53, 86, 183);
/* oklch */ color: oklch(48.4% 0.158 266.4);

Tailwind

colors: {
  custom: {
    50: '#7d85cd',
    500: '#3556b7',
    950: '#000000',
  },
}

SCSS

$custom: #3556b7;
$custom-light: #7d85cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3556b7",
  "rgb": {
    "r": 53,
    "g": 86,
    "b": 183
  },
  "hsl": {
    "h": 224.769,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48447,
    "c": 0.15831,
    "h": 266.4
  },
  "luminance": 0.10831
}

Semantic roles & 50–950 ramp

primary

#3556B7

secondary

#C7B581

accent

#B949DE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3556B7

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

Preview Lab → · Contrast checker → · Palette generator →