#404FC9#404FC9

#404FC9 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.1% C 0.188 H 272.1°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#404FC9
RGB	rgb(64, 79, 201)
HSL	hsl(233, 56%, 52%)
HSV	hsv(233, 68%, 79%)
CMYK	cmyk(68.2%, 60.7%, 0%, 21.2%)
CIE-LAB	lab(39.41, 34.05, -65.22)
CIE-LCH	lch(39.41, 73.57, 297.57°)
OKLab	oklab(49.11% 0.0069 -0.1881)
OKLCH	oklch(49.11% 0.188 272.1)
XYZ	xyz(15.4494, 10.8975, 56.5363)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404FC9 #C9BA40

analogous

#4093C9 #404FC9 #7640C9

triadic

#404FC9 #C9404F #4FC940

tetradic

#404FC9 #C94093 #C9BA40 #40C976

square

#404FC9 #C94093 #C9BA40 #40C976

split-complementary

#404FC9 #C97640 #93C940

monochromatic

#1F286F #2D399F #404FC9 #707BD6 #9FA7E4

Accessibility & contrast

On white

6.60

#404FC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#404FC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404FC9

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404FC9	#FFFFFF	#000000	##FFFFFF
##404FC9	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CD

Deuteranopia (green-blind)

#0057C7

Tritanopia (blue-blind)

#006E84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #404fc9;
/* rgb */ color: rgb(64, 79, 201);
/* oklch */ color: oklch(49.1% 0.188 272.1);

Tailwind

colors: {
  custom: {
    50: '#8580da',
    500: '#404fc9',
    950: '#000000',
  },
}

SCSS

$custom: #404fc9;
$custom-light: #8580da;
$custom-dark: #000000;

JSON

{
  "hex": "#404fc9",
  "rgb": {
    "r": 64,
    "g": 79,
    "b": 201
  },
  "hsl": {
    "h": 233.431,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49112,
    "c": 0.18822,
    "h": 272.1
  },
  "luminance": 0.10899
}

Semantic roles & 50–950 ramp

primary

#404FC9

secondary

#D0CA94

accent

#CF49DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #404FC9

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

Preview Lab → · Contrast checker → · Palette generator →