#404EB4#404EB4

#404EB4 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.2% C 0.161 H 272.7°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#404EB4
RGB	rgb(64, 78, 180)
HSL	hsl(233, 48%, 48%)
HSV	hsv(233, 64%, 71%)
CMYK	cmyk(64.4%, 56.7%, 0%, 29.4%)
CIE-LAB	lab(37.54, 27.32, -55.98)
CIE-LCH	lch(37.54, 62.29, 296.02°)
OKLab	oklab(47.22% 0.0077 -0.1609)
OKLCH	oklch(47.22% 0.161 272.7)
XYZ	xyz(13.0742, 9.8329, 44.3801)
Luminance	0.0983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EB4 #B4A640

analogous

#4088B4 #404EB4 #6C40B4

triadic

#404EB4 #B4404E #4EB440

tetradic

#404EB4 #B44088 #B4A640 #40B46C

square

#404EB4 #B44088 #B4A640 #40B46C

split-complementary

#404EB4 #B46C40 #88B440

monochromatic

#20275A #303A87 #404EB4 #6874C9 #959DD9

Accessibility & contrast

On white

7.08

#404EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#404EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404EB4

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EB4	#FFFFFF	#000000	##FFFFFF
##404EB4	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #404eb4;
/* rgb */ color: rgb(64, 78, 180);
/* oklch */ color: oklch(47.2% 0.161 272.7);

Tailwind

colors: {
  custom: {
    50: '#817fcb',
    500: '#404eb4',
    950: '#000000',
  },
}

SCSS

$custom: #404eb4;
$custom-light: #817fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#404eb4",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 180
  },
  "hsl": {
    "h": 232.759,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47219,
    "c": 0.16111,
    "h": 272.7
  },
  "luminance": 0.09834
}

Semantic roles & 50–950 ramp

primary

#404EB4

secondary

#C5BE8B

accent

#C751D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #404EB4

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

Preview Lab → · Contrast checker → · Palette generator →