#3555CC#3555CC

#3555CC is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.9% C 0.188 H 267.5°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#3555CC
RGB	rgb(53, 85, 204)
HSL	hsl(227, 60%, 50%)
HSV	hsv(227, 74%, 80%)
CMYK	cmyk(74%, 58.3%, 0%, 20%)
CIE-LAB	lab(40.59, 29.89, -65.05)
CIE-LCH	lch(40.59, 71.59, 294.68°)
OKLab	oklab(49.92% -0.0081 -0.1877)
OKLCH	oklch(49.92% 0.188 267.5)
XYZ	xyz(15.6120, 11.6118, 58.5336)
Luminance	0.1161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555CC #CCAC35

analogous

#35A0CC #3555CC #6035CC

triadic

#3555CC #CC3555 #55CC35

tetradic

#3555CC #CC35A0 #CCAC35 #35CC60

square

#3555CC #CC35A0 #CCAC35 #35CC60

split-complementary

#3555CC #CC6035 #A0CC35

monochromatic

#1B2C6B #27409C #3555CC #667ED8 #97A7E5

Accessibility & contrast

On white

6.32

#3555CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3555CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3555CC

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555CC	#FFFFFF	#000000	##FFFFFF
##3555CC	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D0

Deuteranopia (green-blind)

#0059CA

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3555cc;
/* rgb */ color: rgb(53, 85, 204);
/* oklch */ color: oklch(49.9% 0.188 267.5);

Tailwind

colors: {
  custom: {
    50: '#8184dc',
    500: '#3555cc',
    950: '#000000',
  },
}

SCSS

$custom: #3555cc;
$custom-light: #8184dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3555cc",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 204
  },
  "hsl": {
    "h": 227.285,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.49917,
    "c": 0.18793,
    "h": 267.5
  },
  "luminance": 0.11614
}

Semantic roles & 50–950 ramp

primary

#3555CC

secondary

#D0C28D

accent

#C145E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3555CC

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

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