#404EC4#404EC4

#404EC4 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.5% C 0.183 H 272.4°. Best body text is #FFFFFF at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#404EC4
RGB	rgb(64, 78, 196)
HSL	hsl(234, 53%, 51%)
HSV	hsv(234, 67%, 77%)
CMYK	cmyk(67.3%, 60.2%, 0%, 23.1%)
CIE-LAB	lab(38.77, 32.93, -63.36)
CIE-LCH	lch(38.77, 71.41, 297.46°)
OKLab	oklab(48.51% 0.0078 -0.1826)
OKLCH	oklch(48.51% 0.183 272.4)
XYZ	xyz(14.7992, 10.5229, 53.4651)
Luminance	0.1052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404EC4 #C4B640

analogous

#4090C4 #404EC4 #7440C4

triadic

#404EC4 #C4404E #4EC440

tetradic

#404EC4 #C44090 #C4B640 #40C474

square

#404EC4 #C44090 #C4B640 #40C474

split-complementary

#404EC4 #C47440 #90C440

monochromatic

#202869 #2F3A98 #404EC4 #6F79D2 #9EA5E1

Accessibility & contrast

On white

6.76

#404EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#404EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404EC4

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404EC4	#FFFFFF	#000000	##FFFFFF
##404EC4	1.00	6.76	3.10	6.76
#FFFFFF	6.76	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C8

Deuteranopia (green-blind)

#0055C2

Tritanopia (blue-blind)

#006B81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #404ec4;
/* rgb */ color: rgb(64, 78, 196);
/* oklch */ color: oklch(48.5% 0.183 272.4);

Tailwind

colors: {
  custom: {
    50: '#857fd7',
    500: '#404ec4',
    950: '#000000',
  },
}

SCSS

$custom: #404ec4;
$custom-light: #857fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#404ec4",
  "rgb": {
    "r": 64,
    "g": 78,
    "b": 196
  },
  "hsl": {
    "h": 233.636,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48513,
    "c": 0.1828,
    "h": 272.4
  },
  "luminance": 0.10524
}

Semantic roles & 50–950 ramp

primary

#404EC4

secondary

#CDC793

accent

#CD4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #404EC4

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

Preview Lab → · Contrast checker → · Palette generator →