#404DFF#404DFF

#404DFF is a mid, highly saturated blue. Relative luminance 0.136; OKLCH L 53.7% C 0.257 H 270.8°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#404DFF
RGB	rgb(64, 77, 255)
HSL	hsl(236, 100%, 63%)
HSV	hsv(236, 75%, 100%)
CMYK	cmyk(74.9%, 69.8%, 0%, 0%)
CIE-LAB	lab(43.68, 53.50, -88.90)
CIE-LCH	lch(43.68, 103.76, 301.04°)
OKLab	oklab(53.66% 0.0038 -0.2574)
OKLCH	oklch(53.66% 0.257 270.8)
XYZ	xyz(22.8121, 13.6153, 96.0141)
Luminance	0.1362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DFF #FFF240

analogous

#40ADFF #404DFF #9240FF

triadic

#404DFF #FF404D #4DFF40

tetradic

#404DFF #FF40AD #FFF240 #40FF92

square

#404DFF #FF40AD #FFF240 #40FF92

split-complementary

#404DFF #FF9240 #ADFF40

monochromatic

#000DC5 #0314FF #404DFF #7D86FF #BABFFF

Accessibility & contrast

On white

5.64

#404DFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#404DFF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DFF

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DFF	#FFFFFF	#000000	##FFFFFF
##404DFF	1.00	5.64	3.72	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070FF

Deuteranopia (green-blind)

#005EFC

Tritanopia (blue-blind)

#007FA1

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #404dff;
/* rgb */ color: rgb(64, 77, 255);
/* oklch */ color: oklch(53.7% 0.257 270.8);

Tailwind

colors: {
  custom: {
    50: '#9180ff',
    500: '#404dff',
    950: '#000000',
  },
}

SCSS

$custom: #404dff;
$custom-light: #9180ff;
$custom-dark: #000000;

JSON

{
  "hex": "#404dff",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 255
  },
  "hsl": {
    "h": 235.916,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.5366,
    "c": 0.25739,
    "h": 270.8
  },
  "luminance": 0.13618
}

Semantic roles & 50–950 ramp

primary

#404DFF

secondary

#F0EBAB

accent

#D600E6

background

#FAF7FF

surface

#F3EEFF

border

#CDC9D7

text

#0F0A18

muted

#7F7C86

Preview Lab

Preview with #404DFF

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

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