#404EB8#404EB8

#404EB8 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.167 H 272.7°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#404EB8
RGB	rgb(64, 78, 184)
HSL	hsl(233, 48%, 49%)
HSV	hsv(233, 65%, 72%)
CMYK	cmyk(65.2%, 57.6%, 0%, 27.8%)
CIE-LAB	lab(37.84, 28.73, -57.85)
CIE-LCH	lch(37.84, 64.59, 296.41°)
OKLab	oklab(47.54% 0.0078 -0.1664)
OKLCH	oklch(47.54% 0.167 272.7)
XYZ	xyz(13.4876, 9.9983, 46.5572)
Luminance	0.1000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EB8 #B8AA40

analogous

#408AB8 #404EB8 #6E40B8

triadic

#404EB8 #B8404E #4EB840

tetradic

#404EB8 #B8408A #B8AA40 #40B86E

square

#404EB8 #B8408A #B8AA40 #40B86E

split-complementary

#404EB8 #B86E40 #8AB840

monochromatic

#20285D #303B8B #404EB8 #6A75CB #979FDB

Accessibility & contrast

On white

7.00

#404EB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#404EB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404EB8

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EB8	#FFFFFF	#000000	##FFFFFF
##404EB8	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FBC

Deuteranopia (green-blind)

#0054B6

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404eb8;
/* rgb */ color: rgb(64, 78, 184);
/* oklch */ color: oklch(47.5% 0.167 272.7);

Tailwind

colors: {
  custom: {
    50: '#827fce',
    500: '#404eb8',
    950: '#000000',
  },
}

SCSS

$custom: #404eb8;
$custom-light: #827fce;
$custom-dark: #000000;

JSON

{
  "hex": "#404eb8",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 184
  },
  "hsl": {
    "h": 233,
    "s": 48.387,
    "l": 48.627
  },
  "oklch": {
    "l": 0.47536,
    "c": 0.16661,
    "h": 272.7
  },
  "luminance": 0.09999
}

Semantic roles & 50–950 ramp

primary

#404EB8

secondary

#C7C08D

accent

#C850D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #404EB8

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

Preview Lab → · Contrast checker → · Palette generator →