#404EA4#404EA4

#404EA4 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.0% C 0.139 H 272.8°. Best body text is #FFFFFF at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#404EA4
RGB	rgb(64, 78, 164)
HSL	hsl(232, 44%, 45%)
HSV	hsv(232, 61%, 64%)
CMYK	cmyk(61%, 52.4%, 0%, 35.7%)
CIE-LAB	lab(36.40, 21.70, -48.32)
CIE-LCH	lch(36.40, 52.96, 294.19°)
OKLab	oklab(46% 0.0068 -0.1384)
OKLCH	oklch(46% 0.139 272.8)
XYZ	xyz(11.5374, 9.2182, 36.2861)
Luminance	0.0922 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EA4 #A49640

analogous

#4080A4 #404EA4 #6440A4

triadic

#404EA4 #A4404E #4EA440

tetradic

#404EA4 #A44080 #A49640 #40A464

square

#404EA4 #A44080 #A49640 #40A464

split-complementary

#404EA4 #A46440 #80A440

monochromatic

#1E244C #2F3978 #404EA4 #606EC1 #8C96D2

Accessibility & contrast

On white

7.38

#404EA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#404EA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EA4

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EA4	#FFFFFF	#000000	##FFFFFF
##404EA4	1.00	7.38	2.84	7.38
#FFFFFF	7.38	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C5AA7

Deuteranopia (green-blind)

#0051A2

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404ea4;
/* rgb */ color: rgb(64, 78, 164);
/* oklch */ color: oklch(46.0% 0.139 272.8);

Tailwind

colors: {
  custom: {
    50: '#7e7fc0',
    500: '#404ea4',
    950: '#000000',
  },
}

SCSS

$custom: #404ea4;
$custom-light: #7e7fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#404ea4",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 164
  },
  "hsl": {
    "h": 231.6,
    "s": 43.86,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46002,
    "c": 0.13856,
    "h": 272.8
  },
  "luminance": 0.09219
}

Semantic roles & 50–950 ramp

primary

#404EA4

secondary

#BDB583

accent

#C254D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404EA4

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

Preview Lab → · Contrast checker → · Palette generator →