#404CB2#404CB2

#404CB2 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.7% C 0.161 H 273.4°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#404CB2
RGB	rgb(64, 76, 178)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 70%)
CMYK	cmyk(64%, 57.3%, 0%, 30.2%)
CIE-LAB	lab(36.88, 27.91, -55.87)
CIE-LCH	lch(36.88, 62.45, 296.55°)
OKLab	oklab(46.68% 0.0095 -0.1606)
OKLCH	oklch(46.68% 0.161 273.4)
XYZ	xyz(12.7320, 9.4721, 43.2682)
Luminance	0.0947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB2 #B2A640

analogous

#4085B2 #404CB2 #6D40B2

triadic

#404CB2 #B2404C #4CB240

tetradic

#404CB2 #B24085 #B2A640 #40B26D

square

#404CB2 #B24085 #B2A640 #40B26D

split-complementary

#404CB2 #B26D40 #85B240

monochromatic

#202658 #303985 #404CB2 #6771C8 #949BD8

Accessibility & contrast

On white

7.25

#404CB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#404CB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB2

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB2	#FFFFFF	#000000	##FFFFFF
##404CB2	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB5

Deuteranopia (green-blind)

#0052B0

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404cb2;
/* rgb */ color: rgb(64, 76, 178);
/* oklch */ color: oklch(46.7% 0.161 273.4);

Tailwind

colors: {
  custom: {
    50: '#817eca',
    500: '#404cb2',
    950: '#000000',
  },
}

SCSS

$custom: #404cb2;
$custom-light: #817eca;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb2",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 178
  },
  "hsl": {
    "h": 233.684,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.46677,
    "c": 0.16092,
    "h": 273.4
  },
  "luminance": 0.09473
}

Semantic roles & 50–950 ramp

primary

#404CB2

secondary

#C4BE8A

accent

#C951D7

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CB2

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

Preview Lab → · Contrast checker → · Palette generator →