#404DBD#404DBD

#404DBD is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.8% C 0.175 H 272.8°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#404DBD
RGB	rgb(64, 77, 189)
HSL	hsl(234, 49%, 50%)
HSV	hsv(234, 66%, 74%)
CMYK	cmyk(66.1%, 59.3%, 0%, 25.9%)
CIE-LAB	lab(37.97, 31.12, -60.57)
CIE-LCH	lch(37.97, 68.10, 297.19°)
OKLab	oklab(47.75% 0.0087 -0.1744)
OKLCH	oklch(47.75% 0.175 272.8)
XYZ	xyz(13.9505, 10.0706, 49.3429)
Luminance	0.1007 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404DBD #BDB040

analogous

#408CBD #404DBD #7240BD

triadic

#404DBD #BD404D #4DBD40

tetradic

#404DBD #BD408C #BDB040 #40BD72

square

#404DBD #BD408C #BDB040 #40BD72

split-complementary

#404DBD #BD7240 #8CBD40

monochromatic

#212862 #313A8F #404DBD #6D77CD #9AA1DD

Accessibility & contrast

On white

6.97

#404DBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#404DBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #404DBD

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404DBD	#FFFFFF	#000000	##FFFFFF
##404DBD	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC1

Deuteranopia (green-blind)

#0054BB

Tritanopia (blue-blind)

#00697D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #404dbd;
/* rgb */ color: rgb(64, 77, 189);
/* oklch */ color: oklch(47.8% 0.175 272.8);

Tailwind

colors: {
  custom: {
    50: '#837ed2',
    500: '#404dbd',
    950: '#000000',
  },
}

SCSS

$custom: #404dbd;
$custom-light: #837ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#404dbd",
  "rgb": {
    "r": 64,
    "g": 77,
    "b": 189
  },
  "hsl": {
    "h": 233.76,
    "s": 49.407,
    "l": 49.608
  },
  "oklch": {
    "l": 0.47752,
    "c": 0.17466,
    "h": 272.8
  },
  "luminance": 0.10072
}

Semantic roles & 50–950 ramp

primary

#404DBD

secondary

#C9C390

accent

#CB4FD9

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #404DBD

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

Preview Lab → · Contrast checker → · Palette generator →