#404CA4#404CA4

#404CA4 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.141 H 273.6°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#404CA4
RGB	rgb(64, 76, 164)
HSL	hsl(233, 44%, 45%)
HSV	hsv(233, 61%, 64%)
CMYK	cmyk(61%, 53.7%, 0%, 35.7%)
CIE-LAB	lab(35.87, 23.00, -49.18)
CIE-LCH	lch(35.87, 54.29, 295.07°)
OKLab	oklab(45.6% 0.0089 -0.141)
OKLCH	oklch(45.6% 0.141 273.6)
XYZ	xyz(11.3974, 8.9383, 36.2394)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA4 #A49840

analogous

#407EA4 #404CA4 #6640A4

triadic

#404CA4 #A4404C #4CA440

tetradic

#404CA4 #A4407E #A49840 #40A466

square

#404CA4 #A4407E #A49840 #40A466

split-complementary

#404CA4 #A46640 #7EA440

monochromatic

#1E234C #2F3878 #404CA4 #606CC1 #8C95D2

Accessibility & contrast

On white

7.53

#404CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#404CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA4

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA4	#FFFFFF	#000000	##FFFFFF
##404CA4	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1659A7

Deuteranopia (green-blind)

#0050A2

Tritanopia (blue-blind)

#006070

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404ca4;
/* rgb */ color: rgb(64, 76, 164);
/* oklch */ color: oklch(45.6% 0.141 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f7dc0',
    500: '#404ca4',
    950: '#000000',
  },
}

SCSS

$custom: #404ca4;
$custom-light: #7f7dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca4",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 164
  },
  "hsl": {
    "h": 232.8,
    "s": 43.86,
    "l": 44.706
  },
  "oklch": {
    "l": 0.45598,
    "c": 0.14124,
    "h": 273.6
  },
  "luminance": 0.08939
}

Semantic roles & 50–950 ramp

primary

#404CA4

secondary

#BDB683

accent

#C454D4

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404CA4

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

Preview Lab → · Contrast checker → · Palette generator →