#404DC9#404DC9

#404DC9 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.8% C 0.191 H 272.5°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#404DC9
RGB	rgb(64, 77, 201)
HSL	hsl(234, 56%, 52%)
HSV	hsv(234, 68%, 79%)
CMYK	cmyk(68.2%, 61.7%, 0%, 21.2%)
CIE-LAB	lab(38.92, 35.30, -66.01)
CIE-LCH	lch(38.92, 74.86, 298.14°)
OKLab	oklab(48.75% 0.0084 -0.1904)
OKLCH	oklch(48.75% 0.191 272.5)
XYZ	xyz(15.3073, 10.6133, 56.4889)
Luminance	0.1061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.74

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DC9 #C9BC40

analogous

#4091C9 #404DC9 #7840C9

triadic

#404DC9 #C9404D #4DC940

tetradic

#404DC9 #C94091 #C9BC40 #40C978

square

#404DC9 #C94091 #C9BC40 #40C978

split-complementary

#404DC9 #C97840 #91C940

monochromatic

#1F276F #2D389F #404DC9 #7079D6 #9FA6E4

Accessibility & contrast

On white

6.72

#404DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#404DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DC9

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DC9	#FFFFFF	#000000	##FFFFFF
##404DC9	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062CD

Deuteranopia (green-blind)

#0056C7

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #404dc9;
/* rgb */ color: rgb(64, 77, 201);
/* oklch */ color: oklch(48.8% 0.191 272.5);

Tailwind

colors: {
  custom: {
    50: '#867fda',
    500: '#404dc9',
    950: '#000000',
  },
}

SCSS

$custom: #404dc9;
$custom-light: #867fda;
$custom-dark: #000000;

JSON

{
  "hex": "#404dc9",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 201
  },
  "hsl": {
    "h": 234.307,
    "s": 55.918,
    "l": 51.961
  },
  "oklch": {
    "l": 0.48754,
    "c": 0.19062,
    "h": 272.5
  },
  "luminance": 0.10615
}

Semantic roles & 50–950 ramp

primary

#404DC9

secondary

#D0CB94

accent

#D149DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #404DC9

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

Preview Lab → · Contrast checker → · Palette generator →