#3555A5#3555A5

#3555A5 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.134 H 265.2°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#3555A5
RGB	rgb(53, 85, 165)
HSL	hsl(223, 51%, 43%)
HSV	hsv(223, 68%, 65%)
CMYK	cmyk(67.9%, 48.5%, 0%, 35.3%)
CIE-LAB	lab(37.79, 15.50, -46.71)
CIE-LCH	lch(37.79, 49.22, 288.36°)
OKLab	oklab(46.91% -0.0112 -0.1338)
OKLCH	oklch(46.91% 0.134 265.2)
XYZ	xyz(11.5059, 9.9694, 36.9079)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3555A5 #A58535

analogous

#358DA5 #3555A5 #4D35A5

triadic

#3555A5 #A53555 #55A535

tetradic

#3555A5 #A5358D #A58535 #35A54D

square

#3555A5 #A5358D #A58535 #35A54D

split-complementary

#3555A5 #A54D35 #8DA535

monochromatic

#172548 #263D77 #3555A5 #5072C7 #7F98D6

Accessibility & contrast

On white

7.01

#3555A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3555A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3555A5

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3555A5	#FFFFFF	#000000	##FFFFFF
##3555A5	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5EA8

Deuteranopia (green-blind)

#1154A3

Tritanopia (blue-blind)

#006875

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3555a5;
/* rgb */ color: rgb(53, 85, 165);
/* oklch */ color: oklch(46.9% 0.134 265.2);

Tailwind

colors: {
  custom: {
    50: '#7984c0',
    500: '#3555a5',
    950: '#000000',
  },
}

SCSS

$custom: #3555a5;
$custom-light: #7984c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3555a5",
  "rgb": {
    "r": 53,
    "g": 85,
    "b": 165
  },
  "hsl": {
    "h": 222.857,
    "s": 51.376,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46911,
    "c": 0.13429,
    "h": 265.2
  },
  "luminance": 0.0997
}

Semantic roles & 50–950 ramp

primary

#3555A5

secondary

#BFAA77

accent

#B24DDB

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3555A5

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

Preview Lab → · Contrast checker → · Palette generator →