#3555CE#3555CE

#3555CE is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.191 H 267.6°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#3555CE
RGB	rgb(53, 85, 206)
HSL	hsl(227, 61%, 51%)
HSV	hsv(227, 74%, 81%)
CMYK	cmyk(74.3%, 58.7%, 0%, 19.2%)
CIE-LAB	lab(40.75, 30.62, -65.95)
CIE-LCH	lch(40.75, 72.71, 294.91°)
OKLab	oklab(50.08% -0.0081 -0.1904)
OKLCH	oklch(50.08% 0.191 267.6)
XYZ	xyz(15.8534, 11.7084, 59.8050)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555CE #CEAE35

analogous

#35A1CE #3555CE #6135CE

triadic

#3555CE #CE3555 #55CE35

tetradic

#3555CE #CE35A1 #CEAE35 #35CE61

square

#3555CE #CE35A1 #CEAE35 #35CE61

split-complementary

#3555CE #CE6135 #A1CE35

monochromatic

#1B2C6E #27409F #3555CE #667EDA #98A8E6

Accessibility & contrast

On white

6.28

#3555CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#3555CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555CE

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555CE	#FFFFFF	#000000	##FFFFFF
##3555CE	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D2

Deuteranopia (green-blind)

#0059CC

Tritanopia (blue-blind)

#007389

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3555ce;
/* rgb */ color: rgb(53, 85, 206);
/* oklch */ color: oklch(50.1% 0.191 267.6);

Tailwind

colors: {
  custom: {
    50: '#8284de',
    500: '#3555ce',
    950: '#000000',
  },
}

SCSS

$custom: #3555ce;
$custom-light: #8284de;
$custom-dark: #000000;

JSON

{
  "hex": "#3555ce",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 206
  },
  "hsl": {
    "h": 227.451,
    "s": 60.956,
    "l": 50.784
  },
  "oklch": {
    "l": 0.50082,
    "c": 0.19056,
    "h": 267.6
  },
  "luminance": 0.1171
}

Semantic roles & 50–950 ramp

primary

#3555CE

secondary

#D1C38D

accent

#C344E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3555CE

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

Preview Lab → · Contrast checker → · Palette generator →