#404DB4#404DB4

#404DB4 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.0% C 0.162 H 273.0°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#404DB4
RGB	rgb(64, 77, 180)
HSL	hsl(233, 48%, 48%)
HSV	hsv(233, 64%, 71%)
CMYK	cmyk(64.4%, 57.2%, 0%, 29.4%)
CIE-LAB	lab(37.28, 27.97, -56.39)
CIE-LCH	lch(37.28, 62.95, 296.38°)
OKLab	oklab(47.03% 0.0086 -0.1622)
OKLCH	oklch(47.03% 0.162 273)
XYZ	xyz(13.0037, 9.6919, 44.3566)
Luminance	0.0969 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DB4 #B4A740

analogous

#4087B4 #404DB4 #6D40B4

triadic

#404DB4 #B4404D #4DB440

tetradic

#404DB4 #B44087 #B4A740 #40B46D

square

#404DB4 #B44087 #B4A740 #40B46D

split-complementary

#404DB4 #B46D40 #87B440

monochromatic

#20265A #303A87 #404DB4 #6873C9 #959DD9

Accessibility & contrast

On white

7.15

#404DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#404DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404DB4

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DB4	#FFFFFF	#000000	##FFFFFF
##404DB4	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404db4;
/* rgb */ color: rgb(64, 77, 180);
/* oklch */ color: oklch(47.0% 0.162 273.0);

Tailwind

colors: {
  custom: {
    50: '#817ecb',
    500: '#404db4',
    950: '#000000',
  },
}

SCSS

$custom: #404db4;
$custom-light: #817ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#404db4",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 180
  },
  "hsl": {
    "h": 233.276,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47027,
    "c": 0.1624,
    "h": 273
  },
  "luminance": 0.09693
}

Semantic roles & 50–950 ramp

primary

#404DB4

secondary

#C5BE8B

accent

#C851D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404DB4

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

Preview Lab → · Contrast checker → · Palette generator →