#404BB9#404BB9

#404BB9 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.1% C 0.172 H 273.5°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#404BB9
RGB	rgb(64, 75, 185)
HSL	hsl(235, 49%, 49%)
HSV	hsv(235, 65%, 73%)
CMYK	cmyk(65.4%, 59.5%, 0%, 27.5%)
CIE-LAB	lab(37.16, 31.00, -59.54)
CIE-LCH	lch(37.16, 67.13, 297.50°)
OKLab	oklab(47.05% 0.0104 -0.1714)
OKLCH	oklch(47.05% 0.172 273.5)
XYZ	xyz(13.3845, 9.6237, 47.0418)
Luminance	0.0963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404BB9 #B9AE40

analogous

#4088B9 #404BB9 #7240B9

triadic

#404BB9 #B9404B #4BB940

tetradic

#404BB9 #B94088 #B9AE40 #40B972

square

#404BB9 #B94088 #B9AE40 #40B972

split-complementary

#404BB9 #B97240 #88B940

monochromatic

#21265E #30398C #404BB9 #6B73CC #989EDB

Accessibility & contrast

On white

7.18

#404BB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#404BB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404BB9

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404BB9	#FFFFFF	#000000	##FFFFFF
##404BB9	1.00	7.18	2.93	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00667A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404bb9;
/* rgb */ color: rgb(64, 75, 185);
/* oklch */ color: oklch(47.1% 0.172 273.5);

Tailwind

colors: {
  custom: {
    50: '#837dcf',
    500: '#404bb9',
    950: '#000000',
  },
}

SCSS

$custom: #404bb9;
$custom-light: #837dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#404bb9",
  "rgb": {
    "r": 64,
    "g": 75,
    "b": 185
  },
  "hsl": {
    "h": 234.545,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47054,
    "c": 0.17176,
    "h": 273.5
  },
  "luminance": 0.09625
}

Semantic roles & 50–950 ramp

primary

#404BB9

secondary

#C7C28E

accent

#CC50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #404BB9

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

Preview Lab → · Contrast checker → · Palette generator →