#404CB3#404CB3

#404CB3 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.8% C 0.162 H 273.3°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#404CB3
RGB	rgb(64, 76, 179)
HSL	hsl(234, 47%, 48%)
HSV	hsv(234, 64%, 70%)
CMYK	cmyk(64.2%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(36.95, 28.26, -56.34)
CIE-LCH	lch(36.95, 63.03, 296.64°)
OKLab	oklab(46.76% 0.0095 -0.162)
OKLCH	oklch(46.76% 0.162 273.3)
XYZ	xyz(12.8328, 9.5124, 43.7989)
Luminance	0.0951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB3 #B3A740

analogous

#4086B3 #404CB3 #6D40B3

triadic

#404CB3 #B3404C #4CB340

tetradic

#404CB3 #B34086 #B3A740 #40B36D

square

#404CB3 #B34086 #B3A740 #40B36D

split-complementary

#404CB3 #B36D40 #86B340

monochromatic

#202659 #303986 #404CB3 #6772C9 #949CD9

Accessibility & contrast

On white

7.23

#404CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#404CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB3

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB3	#FFFFFF	#000000	##FFFFFF
##404CB3	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB6

Deuteranopia (green-blind)

#0052B1

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404cb3;
/* rgb */ color: rgb(64, 76, 179);
/* oklch */ color: oklch(46.8% 0.162 273.3);

Tailwind

colors: {
  custom: {
    50: '#817eca',
    500: '#404cb3',
    950: '#000000',
  },
}

SCSS

$custom: #404cb3;
$custom-light: #817eca;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb3",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 233.739,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46757,
    "c": 0.1623,
    "h": 273.3
  },
  "luminance": 0.09514
}

Semantic roles & 50–950 ramp

primary

#404CB3

secondary

#C4BE8A

accent

#C951D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CB3

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

Preview Lab → · Contrast checker → · Palette generator →