#404CA1#404CA1

#404CA1 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.4% C 0.137 H 273.6°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#404CA1
RGB	rgb(64, 76, 161)
HSL	hsl(233, 43%, 44%)
HSV	hsv(233, 60%, 63%)
CMYK	cmyk(60.2%, 52.8%, 0%, 36.9%)
CIE-LAB	lab(35.66, 21.96, -47.72)
CIE-LCH	lch(35.66, 52.53, 294.71°)
OKLab	oklab(45.38% 0.0086 -0.1366)
OKLCH	oklch(45.38% 0.137 273.6)
XYZ	xyz(11.1297, 8.8312, 34.8294)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404CA1 #A19540

analogous

#407DA1 #404CA1 #6540A1

triadic

#404CA1 #A1404C #4CA140

tetradic

#404CA1 #A1407D #A19540 #40A165

square

#404CA1 #A1407D #A19540 #40A165

split-complementary

#404CA1 #A16540 #7DA140

monochromatic

#1D2349 #2F3775 #404CA1 #5F6BBF #8B93D1

Accessibility & contrast

On white

7.59

#404CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#404CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404CA1

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404CA1	#FFFFFF	#000000	##FFFFFF
##404CA1	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B58A4

Deuteranopia (green-blind)

#00509F

Tritanopia (blue-blind)

#00606F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #404ca1;
/* rgb */ color: rgb(64, 76, 161);
/* oklch */ color: oklch(45.4% 0.137 273.6);

Tailwind

colors: {
  custom: {
    50: '#7e7dbd',
    500: '#404ca1',
    950: '#000000',
  },
}

SCSS

$custom: #404ca1;
$custom-light: #7e7dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#404ca1",
  "rgb": {
    "r": 64,
    "g": 76,
    "b": 161
  },
  "hsl": {
    "h": 232.577,
    "s": 43.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.45376,
    "c": 0.13692,
    "h": 273.6
  },
  "luminance": 0.08832
}

Semantic roles & 50–950 ramp

primary

#404CA1

secondary

#BCB481

accent

#C355D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #404CA1

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

Preview Lab → · Contrast checker → · Palette generator →