#3555BA#3555BA

#3555BA is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.164 H 266.9°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3555BA
RGB	rgb(53, 85, 186)
HSL	hsl(226, 56%, 47%)
HSV	hsv(226, 72%, 73%)
CMYK	cmyk(71.5%, 54.3%, 0%, 27.1%)
CIE-LAB	lab(39.24, 23.28, -56.78)
CIE-LCH	lch(39.24, 61.37, 292.29°)
OKLab	oklab(48.47% -0.009 -0.1635)
OKLCH	oklch(48.47% 0.164 266.9)
XYZ	xyz(13.5765, 10.7977, 47.8135)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555BA #BA9A35

analogous

#3598BA #3555BA #5835BA

triadic

#3555BA #BA3555 #55BA35

tetradic

#3555BA #BA3598 #BA9A35 #35BA58

square

#3555BA #BA3598 #BA9A35 #35BA58

split-complementary

#3555BA #BA5835 #98BA35

monochromatic

#1A295B #273F8A #3555BA #5C78D0 #8B9FDE

Accessibility & contrast

On white

6.65

#3555BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3555BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555BA

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555BA	#FFFFFF	#000000	##FFFFFF
##3555BA	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0163BE

Deuteranopia (green-blind)

#0057B8

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3555ba;
/* rgb */ color: rgb(53, 85, 186);
/* oklch */ color: oklch(48.5% 0.164 266.9);

Tailwind

colors: {
  custom: {
    50: '#7d84cf',
    500: '#3555ba',
    950: '#000000',
  },
}

SCSS

$custom: #3555ba;
$custom-light: #7d84cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3555ba",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 186
  },
  "hsl": {
    "h": 225.564,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.48474,
    "c": 0.1637,
    "h": 266.9
  },
  "luminance": 0.10799
}

Semantic roles & 50–950 ramp

primary

#3555BA

secondary

#C8B882

accent

#BB49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3555BA

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

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