#404AB4#404AB4

#404AB4 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.5% C 0.166 H 273.9°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#404AB4
RGB	rgb(64, 74, 180)
HSL	hsl(235, 48%, 48%)
HSV	hsv(235, 64%, 71%)
CMYK	cmyk(64.4%, 58.9%, 0%, 29.4%)
CIE-LAB	lab(36.52, 29.89, -57.63)
CIE-LCH	lch(36.52, 64.92, 297.42°)
OKLab	oklab(46.46% 0.0113 -0.1658)
OKLCH	oklch(46.46% 0.166 273.9)
XYZ	xyz(12.7986, 9.2817, 44.2883)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404AB4 #B4AA40

analogous

#4084B4 #404AB4 #7040B4

triadic

#404AB4 #B4404A #4AB440

tetradic

#404AB4 #B44084 #B4AA40 #40B470

square

#404AB4 #B44084 #B4AA40 #40B470

split-complementary

#404AB4 #B47040 #84B440

monochromatic

#20255A #303787 #404AB4 #6870C9 #959BD9

Accessibility & contrast

On white

7.35

#404AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#404AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404AB4

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404AB4	#FFFFFF	#000000	##FFFFFF
##404AB4	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB8

Deuteranopia (green-blind)

#0051B2

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #404ab4;
/* rgb */ color: rgb(64, 74, 180);
/* oklch */ color: oklch(46.5% 0.166 273.9);

Tailwind

colors: {
  custom: {
    50: '#827ccb',
    500: '#404ab4',
    950: '#000000',
  },
}

SCSS

$custom: #404ab4;
$custom-light: #827ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#404ab4",
  "rgb": {
    "r": 64,
    "g": 74,
    "b": 180
  },
  "hsl": {
    "h": 234.828,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4646,
    "c": 0.16622,
    "h": 273.9
  },
  "luminance": 0.09283
}

Semantic roles & 50–950 ramp

primary

#404AB4

secondary

#C5C08B

accent

#CC51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #404AB4

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

Preview Lab → · Contrast checker → · Palette generator →