#404FA3#404FA3

#404FA3 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.136 H 272.4°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#404FA3
RGB	rgb(64, 79, 163)
HSL	hsl(231, 44%, 45%)
HSV	hsv(231, 61%, 64%)
CMYK	cmyk(60.7%, 51.5%, 0%, 36.1%)
CIE-LAB	lab(36.60, 20.70, -47.39)
CIE-LCH	lch(36.60, 51.71, 293.59°)
OKLab	oklab(46.13% 0.0056 -0.1357)
OKLCH	oklch(46.13% 0.136 272.4)
XYZ	xyz(11.5190, 9.3254, 35.8362)
Luminance	0.0933 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FA3 #A39440

analogous

#4081A3 #404FA3 #6340A3

triadic

#404FA3 #A3404F #4FA340

tetradic

#404FA3 #A34081 #A39440 #40A363

square

#404FA3 #A34081 #A39440 #40A363

split-complementary

#404FA3 #A36340 #81A340

monochromatic

#1D244B #2F3A77 #404FA3 #606EC0 #8C96D2

Accessibility & contrast

On white

7.33

#404FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#404FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404FA3

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FA3	#FFFFFF	#000000	##FFFFFF
##404FA3	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215BA6

Deuteranopia (green-blind)

#0952A1

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404fa3;
/* rgb */ color: rgb(64, 79, 163);
/* oklch */ color: oklch(46.1% 0.136 272.4);

Tailwind

colors: {
  custom: {
    50: '#7e80bf',
    500: '#404fa3',
    950: '#000000',
  },
}

SCSS

$custom: #404fa3;
$custom-light: #7e80bf;
$custom-dark: #000000;

JSON

{
  "hex": "#404fa3",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 163
  },
  "hsl": {
    "h": 230.909,
    "s": 43.612,
    "l": 44.51
  },
  "oklch": {
    "l": 0.46133,
    "c": 0.13578,
    "h": 272.4
  },
  "luminance": 0.09326
}

Semantic roles & 50–950 ramp

primary

#404FA3

secondary

#BDB482

accent

#C054D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404FA3

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

Preview Lab → · Contrast checker → · Palette generator →