#403DBD#403DBD

#403DBD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.194 H 276.3°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#403DBD
RGB	rgb(64, 61, 189)
HSL	hsl(241, 51%, 49%)
HSV	hsv(241, 68%, 74%)
CMYK	cmyk(66.1%, 67.7%, 0%, 25.9%)
CIE-LAB	lab(34.19, 41.04, -66.74)
CIE-LCH	lch(34.19, 78.35, 301.59°)
OKLab	oklab(44.99% 0.0212 -0.1926)
OKLCH	oklch(44.99% 0.194 276.3)
XYZ	xyz(12.9654, 8.1005, 49.0145)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.54

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403DBD #BABD3D

analogous

#3D7ABD #403DBD #803DBD

triadic

#403DBD #BD403D #3DBD40

tetradic

#403DBD #BD3D7A #BABD3D #3DBD80

square

#403DBD #BD3D7A #BABD3D #3DBD80

split-complementary

#403DBD #BD803D #7ABD3D

monochromatic

#211F60 #302E8F #403DBD #6B69CE #9997DD

Accessibility & contrast

On white

8.01

#403DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#403DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DBD

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DBD	#FFFFFF	#000000	##FFFFFF
##403DBD	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403dbd;
/* rgb */ color: rgb(64, 61, 189);
/* oklch */ color: oklch(45.0% 0.194 276.3);

Tailwind

colors: {
  custom: {
    50: '#8473d2',
    500: '#403dbd',
    950: '#000000',
  },
}

SCSS

$custom: #403dbd;
$custom-light: #8473d2;
$custom-dark: #000000;

JSON

{
  "hex": "#403dbd",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 189
  },
  "hsl": {
    "h": 241.406,
    "s": 51.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44985,
    "c": 0.19381,
    "h": 276.3
  },
  "luminance": 0.08102
}

Semantic roles & 50–950 ramp

primary

#403DBD

secondary

#C8C98D

accent

#DB4DD7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403DBD

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

Preview Lab → · Contrast checker → · Palette generator →