#3555D0#3555D0

#3555D0 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.193 H 267.6°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#3555D0
RGB	rgb(53, 85, 208)
HSL	hsl(228, 62%, 51%)
HSV	hsv(228, 75%, 82%)
CMYK	cmyk(74.5%, 59.1%, 0%, 18.4%)
CIE-LAB	lab(40.91, 31.35, -66.84)
CIE-LCH	lch(40.91, 73.83, 295.13°)
OKLab	oklab(50.25% -0.0081 -0.193)
OKLCH	oklch(50.25% 0.193 267.6)
XYZ	xyz(16.0979, 11.8062, 61.0927)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555D0 #D0B035

analogous

#35A2D0 #3555D0 #6235D0

triadic

#3555D0 #D03555 #55D035

tetradic

#3555D0 #D035A2 #D0B035 #35D062

square

#3555D0 #D035A2 #D0B035 #35D062

split-complementary

#3555D0 #D06235 #A2D035

monochromatic

#1A2C70 #263FA2 #3555D0 #677FDC #98A9E7

Accessibility & contrast

On white

6.25

#3555D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#3555D0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555D0

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555D0	#FFFFFF	#000000	##FFFFFF
##3555D0	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D4

Deuteranopia (green-blind)

#0059CE

Tritanopia (blue-blind)

#00748A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3555d0;
/* rgb */ color: rgb(53, 85, 208);
/* oklch */ color: oklch(50.2% 0.193 267.6);

Tailwind

colors: {
  custom: {
    50: '#8284df',
    500: '#3555d0',
    950: '#000000',
  },
}

SCSS

$custom: #3555d0;
$custom-light: #8284df;
$custom-dark: #000000;

JSON

{
  "hex": "#3555d0",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 208
  },
  "hsl": {
    "h": 227.613,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50249,
    "c": 0.19319,
    "h": 267.6
  },
  "luminance": 0.11808
}

Semantic roles & 50–950 ramp

primary

#3555D0

secondary

#D3C58E

accent

#C442E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3555D0

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

Preview Lab → · Contrast checker → · Palette generator →