#3555BD#3555BD

#3555BD is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.7% C 0.168 H 267.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3555BD
RGB	rgb(53, 85, 189)
HSL	hsl(226, 56%, 47%)
HSV	hsv(226, 72%, 74%)
CMYK	cmyk(72%, 55%, 0%, 25.9%)
CIE-LAB	lab(39.46, 24.38, -58.18)
CIE-LCH	lch(39.46, 63.08, 292.74°)
OKLab	oklab(48.71% -0.0088 -0.1676)
OKLCH	oklch(48.71% 0.168 267)
XYZ	xyz(13.8988, 10.9266, 49.5108)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555BD #BD9D35

analogous

#3599BD #3555BD #5935BD

triadic

#3555BD #BD3555 #55BD35

tetradic

#3555BD #BD3599 #BD9D35 #35BD59

square

#3555BD #BD3599 #BD9D35 #35BD59

split-complementary

#3555BD #BD5935 #99BD35

monochromatic

#1A2A5D #28408D #3555BD #5D79D2 #8DA1DF

Accessibility & contrast

On white

6.59

#3555BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3555BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555BD

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555BD	#FFFFFF	#000000	##FFFFFF
##3555BD	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#0057BB

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3555bd;
/* rgb */ color: rgb(53, 85, 189);
/* oklch */ color: oklch(48.7% 0.168 267.0);

Tailwind

colors: {
  custom: {
    50: '#7e84d2',
    500: '#3555bd',
    950: '#000000',
  },
}

SCSS

$custom: #3555bd;
$custom-light: #7e84d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3555bd",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 189
  },
  "hsl": {
    "h": 225.882,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48708,
    "c": 0.16779,
    "h": 267
  },
  "luminance": 0.10928
}

Semantic roles & 50–950 ramp

primary

#3555BD

secondary

#CAB984

accent

#BC48DF

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3555BD

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

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