#404FC4#404FC4

#404FC4 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.7% C 0.182 H 272.2°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#404FC4
RGB	rgb(64, 79, 196)
HSL	hsl(233, 53%, 51%)
HSV	hsv(233, 67%, 77%)
CMYK	cmyk(67.3%, 59.7%, 0%, 23.1%)
CIE-LAB	lab(39.01, 32.30, -62.96)
CIE-LCH	lch(39.01, 70.76, 297.16°)
OKLab	oklab(48.7% 0.007 -0.1814)
OKLCH	oklch(48.7% 0.182 272.2)
XYZ	xyz(14.8708, 10.6661, 53.4889)
Luminance	0.1067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FC4 #C4B540

analogous

#4091C4 #404FC4 #7340C4

triadic

#404FC4 #C4404F #4FC440

tetradic

#404FC4 #C44091 #C4B540 #40C473

square

#404FC4 #C44091 #C4B540 #40C473

split-complementary

#404FC4 #C47340 #91C440

monochromatic

#202969 #2F3B98 #404FC4 #6F7AD2 #9EA5E1

Accessibility & contrast

On white

6.70

#404FC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#404FC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FC4

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FC4	#FFFFFF	#000000	##FFFFFF
##404FC4	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C8

Deuteranopia (green-blind)

#0056C2

Tritanopia (blue-blind)

#006C82

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404fc4;
/* rgb */ color: rgb(64, 79, 196);
/* oklch */ color: oklch(48.7% 0.182 272.2);

Tailwind

colors: {
  custom: {
    50: '#8480d7',
    500: '#404fc4',
    950: '#000000',
  },
}

SCSS

$custom: #404fc4;
$custom-light: #8480d7;
$custom-dark: #000000;

JSON

{
  "hex": "#404fc4",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 196
  },
  "hsl": {
    "h": 233.182,
    "s": 52.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.48697,
    "c": 0.18158,
    "h": 272.2
  },
  "luminance": 0.10667
}

Semantic roles & 50–950 ramp

primary

#404FC4

secondary

#CDC693

accent

#CC4CDC

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #404FC4

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

Preview Lab → · Contrast checker → · Palette generator →