#404AB9#404AB9

#404AB9 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.173 H 273.7°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#404AB9
RGB	rgb(64, 74, 185)
HSL	hsl(235, 49%, 49%)
HSV	hsv(235, 65%, 73%)
CMYK	cmyk(65.4%, 60%, 0%, 27.5%)
CIE-LAB	lab(36.91, 31.64, -59.95)
CIE-LCH	lch(36.91, 67.78, 297.82°)
OKLab	oklab(46.87% 0.0112 -0.1726)
OKLCH	oklch(46.87% 0.173 273.7)
XYZ	xyz(13.3172, 9.4892, 47.0193)
Luminance	0.0949 (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

#404AB9 #B9AF40

analogous

#4087B9 #404AB9 #7340B9

triadic

#404AB9 #B9404A #4AB940

tetradic

#404AB9 #B94087 #B9AF40 #40B973

square

#404AB9 #B94087 #B9AF40 #40B973

split-complementary

#404AB9 #B97340 #87B940

monochromatic

#21265E #30388C #404AB9 #6B73CC #989EDB

Accessibility & contrast

On white

7.25

#404AB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#404AB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404AB9

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404AB9	#FFFFFF	#000000	##FFFFFF
##404AB9	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #404ab9;
/* rgb */ color: rgb(64, 74, 185);
/* oklch */ color: oklch(46.9% 0.173 273.7);

Tailwind

colors: {
  custom: {
    50: '#837ccf',
    500: '#404ab9',
    950: '#000000',
  },
}

SCSS

$custom: #404ab9;
$custom-light: #837ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#404ab9",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 185
  },
  "hsl": {
    "h": 235.041,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.4687,
    "c": 0.17302,
    "h": 273.7
  },
  "luminance": 0.0949
}

Semantic roles & 50–950 ramp

primary

#404AB9

secondary

#C7C28E

accent

#CD50D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #404AB9

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

Preview Lab → · Contrast checker → · Palette generator →