#404BB7#404BB7

#404BB7 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.169 H 273.5°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#404BB7
RGB	rgb(64, 75, 183)
HSL	hsl(234, 48%, 48%)
HSV	hsv(234, 65%, 72%)
CMYK	cmyk(65%, 59%, 0%, 28.2%)
CIE-LAB	lab(37.00, 30.30, -58.62)
CIE-LCH	lch(37.00, 65.99, 297.34°)
OKLab	oklab(46.89% 0.0104 -0.1687)
OKLCH	oklch(46.89% 0.169 273.5)
XYZ	xyz(13.1748, 9.5399, 45.9377)
Luminance	0.0954 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BB7 #B7AC40

analogous

#4086B7 #404BB7 #7040B7

triadic

#404BB7 #B7404B #4BB740

tetradic

#404BB7 #B74086 #B7AC40 #40B770

square

#404BB7 #B74086 #B7AC40 #40B770

split-complementary

#404BB7 #B77040 #86B740

monochromatic

#20265C #30388A #404BB7 #6972CB #979DDB

Accessibility & contrast

On white

7.22

#404BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#404BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404BB7

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BB7	#FFFFFF	#000000	##FFFFFF
##404BB7	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBB

Deuteranopia (green-blind)

#0052B5

Tritanopia (blue-blind)

#006579

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404bb7;
/* rgb */ color: rgb(64, 75, 183);
/* oklch */ color: oklch(46.9% 0.169 273.5);

Tailwind

colors: {
  custom: {
    50: '#827dcd',
    500: '#404bb7',
    950: '#000000',
  },
}

SCSS

$custom: #404bb7;
$custom-light: #827dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#404bb7",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 183
  },
  "hsl": {
    "h": 234.454,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.4689,
    "c": 0.16905,
    "h": 273.5
  },
  "luminance": 0.09541
}

Semantic roles & 50–950 ramp

primary

#404BB7

secondary

#C6C18D

accent

#CB50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #404BB7

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

Preview Lab → · Contrast checker → · Palette generator →