#404CFF#404CFF

#404CFF is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 53.5% C 0.258 H 270.9°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#404CFF
RGB	rgb(64, 76, 255)
HSL	hsl(236, 100%, 63%)
HSV	hsv(236, 75%, 100%)
CMYK	cmyk(74.9%, 70.2%, 0%, 0%)
CIE-LAB	lab(43.47, 54.06, -89.23)
CIE-LCH	lch(43.47, 104.33, 301.21°)
OKLab	oklab(53.51% 0.0043 -0.2583)
OKLCH	oklch(53.51% 0.258 270.9)
XYZ	xyz(22.7427, 13.4764, 95.9910)
Luminance	0.1348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CFF #FFF340

analogous

#40ACFF #404CFF #9340FF

triadic

#404CFF #FF404C #4CFF40

tetradic

#404CFF #FF40AC #FFF340 #40FF93

square

#404CFF #FF40AC #FFF340 #40FF93

split-complementary

#404CFF #FF9340 #ACFF40

monochromatic

#000CC5 #0313FF #404CFF #7D85FF #BABFFF

Accessibility & contrast

On white

5.68

#404CFF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#404CFF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404CFF

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CFF	#FFFFFF	#000000	##FFFFFF
##404CFF	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070FF

Deuteranopia (green-blind)

#005DFC

Tritanopia (blue-blind)

#007FA1

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #404cff;
/* rgb */ color: rgb(64, 76, 255);
/* oklch */ color: oklch(53.5% 0.258 270.9);

Tailwind

colors: {
  custom: {
    50: '#917fff',
    500: '#404cff',
    950: '#000000',
  },
}

SCSS

$custom: #404cff;
$custom-light: #917fff;
$custom-dark: #000000;

JSON

{
  "hex": "#404cff",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 255
  },
  "hsl": {
    "h": 236.23,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.53514,
    "c": 0.25837,
    "h": 270.9
  },
  "luminance": 0.13479
}

Semantic roles & 50–950 ramp

primary

#404CFF

secondary

#F0ECAB

accent

#D700E6

background

#FAF7FF

surface

#F3EEFF

border

#CDC9D7

text

#0F0A18

muted

#7F7C86

Preview Lab

Preview with #404CFF

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

Preview Lab → · Contrast checker → · Palette generator →