#3555DA#3555DA

#3555DA is a mid, highly saturated blue. Relative luminance 0.123; OKLCH L 51.1% C 0.206 H 267.8°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3555DA
RGB	rgb(53, 85, 218)
HSL	hsl(228, 69%, 53%)
HSV	hsv(228, 76%, 85%)
CMYK	cmyk(75.7%, 61%, 0%, 14.5%)
CIE-LAB	lab(41.71, 34.97, -71.27)
CIE-LCH	lch(41.71, 79.39, 296.14°)
OKLab	oklab(51.1% -0.008 -0.206)
OKLCH	oklch(51.1% 0.206 267.8)
XYZ	xyz(17.3672, 12.3139, 67.7776)
Luminance	0.1232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555DA #DABA35

analogous

#35A7DA #3555DA #6835DA

triadic

#3555DA #DA3555 #55DA35

tetradic

#3555DA #DA35A7 #DABA35 #35DA68

square

#3555DA #DA35A7 #DABA35 #35DA68

split-complementary

#3555DA #DA6835 #A7DA35

monochromatic

#172B7E #203DB1 #3555DA #6981E3 #9CACED

Accessibility & contrast

On white

6.06

#3555DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3555DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555DA

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555DA	#FFFFFF	#000000	##FFFFFF
##3555DA	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADE

Deuteranopia (green-blind)

#005BD7

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3555da;
/* rgb */ color: rgb(53, 85, 218);
/* oklch */ color: oklch(51.1% 0.206 267.8);

Tailwind

colors: {
  custom: {
    50: '#8484e6',
    500: '#3555da',
    950: '#000000',
  },
}

SCSS

$custom: #3555da;
$custom-light: #8484e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3555da",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 218
  },
  "hsl": {
    "h": 228.364,
    "s": 69.038,
    "l": 53.137
  },
  "oklch": {
    "l": 0.51097,
    "c": 0.20616,
    "h": 267.8
  },
  "luminance": 0.12316
}

Semantic roles & 50–950 ramp

primary

#3555DA

secondary

#D9CB92

accent

#CA3CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3555DA

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

Preview Lab → · Contrast checker → · Palette generator →