#404CB7#404CB7

#404CB7 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 47.1% C 0.168 H 273.3°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#404CB7
RGB	rgb(64, 76, 183)
HSL	hsl(234, 48%, 48%)
HSV	hsv(234, 65%, 72%)
CMYK	cmyk(65%, 58.5%, 0%, 28.2%)
CIE-LAB	lab(37.26, 29.66, -58.21)
CIE-LCH	lch(37.26, 65.33, 297.00°)
OKLab	oklab(47.08% 0.0095 -0.1675)
OKLCH	oklch(47.08% 0.168 273.3)
XYZ	xyz(13.2432, 9.6766, 45.9604)
Luminance	0.0968 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CB7 #B7AB40

analogous

#4087B7 #404CB7 #7040B7

triadic

#404CB7 #B7404C #4CB740

tetradic

#404CB7 #B74087 #B7AB40 #40B770

square

#404CB7 #B74087 #B7AB40 #40B770

split-complementary

#404CB7 #B77040 #87B740

monochromatic

#20265C #30398A #404CB7 #6973CB #979EDB

Accessibility & contrast

On white

7.15

#404CB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#404CB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CB7

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CB7	#FFFFFF	#000000	##FFFFFF
##404CB7	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBB

Deuteranopia (green-blind)

#0052B5

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404cb7;
/* rgb */ color: rgb(64, 76, 183);
/* oklch */ color: oklch(47.1% 0.168 273.3);

Tailwind

colors: {
  custom: {
    50: '#827ecd',
    500: '#404cb7',
    950: '#000000',
  },
}

SCSS

$custom: #404cb7;
$custom-light: #827ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#404cb7",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 183
  },
  "hsl": {
    "h": 233.95,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47078,
    "c": 0.16778,
    "h": 273.3
  },
  "luminance": 0.09678
}

Semantic roles & 50–950 ramp

primary

#404CB7

secondary

#C6C08D

accent

#CA50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #404CB7

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

Preview Lab → · Contrast checker → · Palette generator →