#404CB1#404CB1

#404CB1 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.6% C 0.160 H 273.4°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#404CB1
RGB	rgb(64, 76, 177)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 69%)
CMYK	cmyk(63.8%, 57.1%, 0%, 30.6%)
CIE-LAB	lab(36.80, 27.56, -55.40)
CIE-LCH	lch(36.80, 61.88, 296.45°)
OKLab	oklab(46.6% 0.0094 -0.1593)
OKLCH	oklch(46.6% 0.16 273.4)
XYZ	xyz(12.6320, 9.4321, 42.7413)
Luminance	0.0943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB1 #B1A540

analogous

#4085B1 #404CB1 #6C40B1

triadic

#404CB1 #B1404C #4CB140

tetradic

#404CB1 #B14085 #B1A540 #40B16C

square

#404CB1 #B14085 #B1A540 #40B16C

split-complementary

#404CB1 #B16C40 #85B140

monochromatic

#1F2557 #303984 #404CB1 #6671C8 #939BD8

Accessibility & contrast

On white

7.27

#404CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#404CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB1

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB1	#FFFFFF	#000000	##FFFFFF
##404CB1	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#0052AF

Tritanopia (blue-blind)

#006477

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404cb1;
/* rgb */ color: rgb(64, 76, 177);
/* oklch */ color: oklch(46.6% 0.160 273.4);

Tailwind

colors: {
  custom: {
    50: '#817ec9',
    500: '#404cb1',
    950: '#000000',
  },
}

SCSS

$custom: #404cb1;
$custom-light: #817ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb1",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 177
  },
  "hsl": {
    "h": 233.628,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.46598,
    "c": 0.15954,
    "h": 273.4
  },
  "luminance": 0.09433
}

Semantic roles & 50–950 ramp

primary

#404CB1

secondary

#C3BD89

accent

#C851D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CB1

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

Preview Lab → · Contrast checker → · Palette generator →