#404FA4#404FA4

#404FA4 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.2% C 0.137 H 272.4°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#404FA4
RGB	rgb(64, 79, 164)
HSL	hsl(231, 44%, 45%)
HSV	hsv(231, 61%, 64%)
CMYK	cmyk(61%, 51.8%, 0%, 35.7%)
CIE-LAB	lab(36.67, 21.05, -47.88)
CIE-LCH	lch(36.67, 52.30, 293.73°)
OKLab	oklab(46.21% 0.0058 -0.1371)
OKLCH	oklch(46.21% 0.137 272.4)
XYZ	xyz(11.6090, 9.3614, 36.3099)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FA4 #A49540

analogous

#4081A4 #404FA4 #6340A4

triadic

#404FA4 #A4404F #4FA440

tetradic

#404FA4 #A44081 #A49540 #40A463

square

#404FA4 #A44081 #A49540 #40A463

split-complementary

#404FA4 #A46340 #81A440

monochromatic

#1E254C #2F3A78 #404FA4 #606FC1 #8C97D2

Accessibility & contrast

On white

7.31

#404FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#404FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404FA4

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FA4	#FFFFFF	#000000	##FFFFFF
##404FA4	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5BA7

Deuteranopia (green-blind)

#0552A2

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404fa4;
/* rgb */ color: rgb(64, 79, 164);
/* oklch */ color: oklch(46.2% 0.137 272.4);

Tailwind

colors: {
  custom: {
    50: '#7e80bf',
    500: '#404fa4',
    950: '#000000',
  },
}

SCSS

$custom: #404fa4;
$custom-light: #7e80bf;
$custom-dark: #000000;

JSON

{
  "hex": "#404fa4",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 164
  },
  "hsl": {
    "h": 231,
    "s": 43.86,
    "l": 44.706
  },
  "oklch": {
    "l": 0.46205,
    "c": 0.13722,
    "h": 272.4
  },
  "luminance": 0.09362
}

Semantic roles & 50–950 ramp

primary

#404FA4

secondary

#BDB483

accent

#C054D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #404FA4

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

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