#404CA9#404CA9

#404CA9 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.0% C 0.148 H 273.5°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#404CA9
RGB	rgb(64, 76, 169)
HSL	hsl(233, 45%, 46%)
HSV	hsv(233, 62%, 66%)
CMYK	cmyk(62.1%, 55%, 0%, 33.7%)
CIE-LAB	lab(36.22, 24.76, -51.59)
CIE-LCH	lch(36.22, 57.23, 295.63°)
OKLab	oklab(45.98% 0.0092 -0.1481)
OKLCH	oklch(45.98% 0.148 273.5)
XYZ	xyz(11.8579, 9.1225, 38.6644)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA9 #A99D40

analogous

#4080A9 #404CA9 #6840A9

triadic

#404CA9 #A9404C #4CA940

tetradic

#404CA9 #A94080 #A99D40 #40A968

square

#404CA9 #A94080 #A99D40 #40A968

split-complementary

#404CA9 #A96840 #80A940

monochromatic

#1E2450 #2F387D #404CA9 #626EC4 #8F97D5

Accessibility & contrast

On white

7.43

#404CA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#404CA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA9

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA9	#FFFFFF	#000000	##FFFFFF
##404CA9	1.00	7.43	2.82	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#095AAC

Deuteranopia (green-blind)

#0051A7

Tritanopia (blue-blind)

#006273

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #404ca9;
/* rgb */ color: rgb(64, 76, 169);
/* oklch */ color: oklch(46.0% 0.148 273.5);

Tailwind

colors: {
  custom: {
    50: '#7f7dc3',
    500: '#404ca9',
    950: '#000000',
  },
}

SCSS

$custom: #404ca9;
$custom-light: #7f7dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca9",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 169
  },
  "hsl": {
    "h": 233.143,
    "s": 45.064,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45976,
    "c": 0.14834,
    "h": 273.5
  },
  "luminance": 0.09123
}

Semantic roles & 50–950 ramp

primary

#404CA9

secondary

#C0B985

accent

#C653D5

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #404CA9

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

Preview Lab → · Contrast checker → · Palette generator →