#404EA5#404EA5

#404EA5 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.140 H 272.8°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#404EA5
RGB	rgb(64, 78, 165)
HSL	hsl(232, 44%, 45%)
HSV	hsv(232, 61%, 65%)
CMYK	cmyk(61.2%, 52.7%, 0%, 35.3%)
CIE-LAB	lab(36.47, 22.05, -48.80)
CIE-LCH	lch(36.47, 53.55, 294.32°)
OKLab	oklab(46.08% 0.0069 -0.1398)
OKLCH	oklch(46.08% 0.14 272.8)
XYZ	xyz(11.6280, 9.2544, 36.7635)
Luminance	0.0925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EA5 #A59740

analogous

#4081A5 #404EA5 #6440A5

triadic

#404EA5 #A5404E #4EA540

tetradic

#404EA5 #A54081 #A59740 #40A564

square

#404EA5 #A54081 #A59740 #40A564

split-complementary

#404EA5 #A56440 #81A540

monochromatic

#1E244D #2F3979 #404EA5 #616EC2 #8D96D3

Accessibility & contrast

On white

7.37

#404EA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#404EA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EA5

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EA5	#FFFFFF	#000000	##FFFFFF
##404EA5	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5AA8

Deuteranopia (green-blind)

#0052A3

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404ea5;
/* rgb */ color: rgb(64, 78, 165);
/* oklch */ color: oklch(46.1% 0.140 272.8);

Tailwind

colors: {
  custom: {
    50: '#7f7fc0',
    500: '#404ea5',
    950: '#000000',
  },
}

SCSS

$custom: #404ea5;
$custom-light: #7f7fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#404ea5",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 165
  },
  "hsl": {
    "h": 231.683,
    "s": 44.105,
    "l": 44.902
  },
  "oklch": {
    "l": 0.46075,
    "c": 0.13999,
    "h": 272.8
  },
  "luminance": 0.09255
}

Semantic roles & 50–950 ramp

primary

#404EA5

secondary

#BEB683

accent

#C254D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404EA5

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

Preview Lab → · Contrast checker → · Palette generator →