#404FC7#404FC7

#404FC7 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.9% C 0.186 H 272.1°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#404FC7
RGB	rgb(64, 79, 199)
HSL	hsl(233, 55%, 52%)
HSV	hsv(233, 68%, 78%)
CMYK	cmyk(67.8%, 60.3%, 0%, 22%)
CIE-LAB	lab(39.25, 33.35, -64.32)
CIE-LCH	lch(39.25, 72.45, 297.41°)
OKLab	oklab(48.95% 0.0069 -0.1854)
OKLCH	oklch(48.95% 0.186 272.1)
XYZ	xyz(15.2157, 10.8040, 55.3053)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FC7 #C7B840

analogous

#4093C7 #404FC7 #7540C7

triadic

#404FC7 #C7404F #4FC740

tetradic

#404FC7 #C74093 #C7B840 #40C775

square

#404FC7 #C74093 #C7B840 #40C775

split-complementary

#404FC7 #C77540 #93C740

monochromatic

#20286D #2E3A9C #404FC7 #6F7BD5 #9FA6E3

Accessibility & contrast

On white

6.64

#404FC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#404FC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FC7

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FC7	#FFFFFF	#000000	##FFFFFF
##404FC7	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CB

Deuteranopia (green-blind)

#0056C5

Tritanopia (blue-blind)

#006D83

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404fc7;
/* rgb */ color: rgb(64, 79, 199);
/* oklch */ color: oklch(48.9% 0.186 272.1);

Tailwind

colors: {
  custom: {
    50: '#8580d9',
    500: '#404fc7',
    950: '#000000',
  },
}

SCSS

$custom: #404fc7;
$custom-light: #8580d9;
$custom-dark: #000000;

JSON

{
  "hex": "#404fc7",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 199
  },
  "hsl": {
    "h": 233.333,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.48945,
    "c": 0.18557,
    "h": 272.1
  },
  "luminance": 0.10805
}

Semantic roles & 50–950 ramp

primary

#404FC7

secondary

#CFC894

accent

#CE4ADE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #404FC7

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

Preview Lab → · Contrast checker → · Palette generator →