#404BB1#404BB1

#404BB1 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.4% C 0.161 H 273.7°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#404BB1
RGB	rgb(64, 75, 177)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 69%)
CMYK	cmyk(63.8%, 57.6%, 0%, 30.6%)
CIE-LAB	lab(36.55, 28.20, -55.82)
CIE-LCH	lch(36.55, 62.54, 296.81°)
OKLab	oklab(46.41% 0.0104 -0.1605)
OKLCH	oklch(46.41% 0.161 273.7)
XYZ	xyz(12.5636, 9.2954, 42.7186)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BB1 #B1A640

analogous

#4084B1 #404BB1 #6D40B1

triadic

#404BB1 #B1404B #4BB140

tetradic

#404BB1 #B14084 #B1A640 #40B16D

square

#404BB1 #B14084 #B1A640 #40B16D

split-complementary

#404BB1 #B16D40 #84B140

monochromatic

#1F2557 #303884 #404BB1 #6670C8 #939AD8

Accessibility & contrast

On white

7.34

#404BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#404BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404BB1

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BB1	#FFFFFF	#000000	##FFFFFF
##404BB1	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB4

Deuteranopia (green-blind)

#0051AF

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404bb1;
/* rgb */ color: rgb(64, 75, 177);
/* oklch */ color: oklch(46.4% 0.161 273.7);

Tailwind

colors: {
  custom: {
    50: '#817dc9',
    500: '#404bb1',
    950: '#000000',
  },
}

SCSS

$custom: #404bb1;
$custom-light: #817dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#404bb1",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 177
  },
  "hsl": {
    "h": 234.159,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.46407,
    "c": 0.16082,
    "h": 273.7
  },
  "luminance": 0.09296
}

Semantic roles & 50–950 ramp

primary

#404BB1

secondary

#C3BE89

accent

#CA51D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404BB1

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

Preview Lab → · Contrast checker → · Palette generator →