#404FB8#404FB8

#404FB8 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.7% C 0.165 H 272.4°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#404FB8
RGB	rgb(64, 79, 184)
HSL	hsl(233, 48%, 49%)
HSV	hsv(233, 65%, 72%)
CMYK	cmyk(65.2%, 57.1%, 0%, 27.8%)
CIE-LAB	lab(38.09, 28.09, -57.43)
CIE-LCH	lch(38.09, 63.93, 296.06°)
OKLab	oklab(47.73% 0.0069 -0.1652)
OKLCH	oklch(47.73% 0.165 272.4)
XYZ	xyz(13.5592, 10.1414, 46.5810)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FB8 #B8A940

analogous

#408BB8 #404FB8 #6D40B8

triadic

#404FB8 #B8404F #4FB840

tetradic

#404FB8 #B8408B #B8A940 #40B86D

square

#404FB8 #B8408B #B8A940 #40B86D

split-complementary

#404FB8 #B86D40 #8BB840

monochromatic

#20285D #303C8B #404FB8 #6A76CB #97A0DB

Accessibility & contrast

On white

6.93

#404FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#404FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FB8

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FB8	#FFFFFF	#000000	##FFFFFF
##404FB8	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBC

Deuteranopia (green-blind)

#0054B6

Tritanopia (blue-blind)

#00687C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #404fb8;
/* rgb */ color: rgb(64, 79, 184);
/* oklch */ color: oklch(47.7% 0.165 272.4);

Tailwind

colors: {
  custom: {
    50: '#8280ce',
    500: '#404fb8',
    950: '#000000',
  },
}

SCSS

$custom: #404fb8;
$custom-light: #8280ce;
$custom-dark: #000000;

JSON

{
  "hex": "#404fb8",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 184
  },
  "hsl": {
    "h": 232.5,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.47726,
    "c": 0.16534,
    "h": 272.4
  },
  "luminance": 0.10143
}

Semantic roles & 50–950 ramp

primary

#404FB8

secondary

#C7C08D

accent

#C750D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #404FB8

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

Preview Lab → · Contrast checker → · Palette generator →