#403DBE#403DBE

#403DBE is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.1% C 0.195 H 276.2°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#403DBE
RGB	rgb(64, 61, 190)
HSL	hsl(241, 51%, 49%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(66.3%, 67.9%, 0%, 25.5%)
CIE-LAB	lab(34.28, 41.38, -67.18)
CIE-LCH	lch(34.28, 78.90, 301.63°)
OKLab	oklab(45.08% 0.0211 -0.1939)
OKLCH	oklch(45.08% 0.195 276.2)
XYZ	xyz(13.0743, 8.1440, 49.5882)
Luminance	0.0814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.59

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403DBE #BBBE3D

analogous

#3D7BBE #403DBE #813DBE

triadic

#403DBE #BE403D #3DBE40

tetradic

#403DBE #BE3D7B #BBBE3D #3DBE81

square

#403DBE #BE3D7B #BBBE3D #3DBE81

split-complementary

#403DBE #BE813D #7BBE3D

monochromatic

#211F61 #302E90 #403DBE #6C69CF #9998DE

Accessibility & contrast

On white

7.99

#403DBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#403DBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DBE

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DBE	#FFFFFF	#000000	##FFFFFF
##403DBE	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #403dbe;
/* rgb */ color: rgb(64, 61, 190);
/* oklch */ color: oklch(45.1% 0.195 276.2);

Tailwind

colors: {
  custom: {
    50: '#8573d3',
    500: '#403dbe',
    950: '#000000',
  },
}

SCSS

$custom: #403dbe;
$custom-light: #8573d3;
$custom-dark: #000000;

JSON

{
  "hex": "#403dbe",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 190
  },
  "hsl": {
    "h": 241.395,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45077,
    "c": 0.19508,
    "h": 276.2
  },
  "luminance": 0.08145
}

Semantic roles & 50–950 ramp

primary

#403DBE

secondary

#C8C98D

accent

#DB4DD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403DBE

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

Preview Lab → · Contrast checker → · Palette generator →