#403DBC#403DBC

#403DBC is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.193 H 276.4°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#403DBC
RGB	rgb(64, 61, 188)
HSL	hsl(241, 51%, 49%)
HSV	hsv(241, 68%, 74%)
CMYK	cmyk(66%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(34.10, 40.71, -66.30)
CIE-LCH	lch(34.10, 77.80, 301.55°)
OKLab	oklab(44.89% 0.0213 -0.1914)
OKLCH	oklch(44.89% 0.193 276.4)
XYZ	xyz(12.8572, 8.0572, 48.4448)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.50

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403DBC #B9BC3D

analogous

#3D7ABC #403DBC #803DBC

triadic

#403DBC #BC403D #3DBC40

tetradic

#403DBC #BC3D7A #B9BC3D #3DBC80

square

#403DBC #BC3D7A #B9BC3D #3DBC80

split-complementary

#403DBC #BC803D #7ABC3D

monochromatic

#211F60 #302E8E #403DBC #6B68CE #9896DD

Accessibility & contrast

On white

8.04

#403DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#403DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DBC

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DBC	#FFFFFF	#000000	##FFFFFF
##403DBC	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#004BBA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403dbc;
/* rgb */ color: rgb(64, 61, 188);
/* oklch */ color: oklch(44.9% 0.193 276.4);

Tailwind

colors: {
  custom: {
    50: '#8473d1',
    500: '#403dbc',
    950: '#000000',
  },
}

SCSS

$custom: #403dbc;
$custom-light: #8473d1;
$custom-dark: #000000;

JSON

{
  "hex": "#403dbc",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 241.417,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44893,
    "c": 0.19254,
    "h": 276.4
  },
  "luminance": 0.08058
}

Semantic roles & 50–950 ramp

primary

#403DBC

secondary

#C7C98C

accent

#DA4DD7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403DBC

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

Preview Lab → · Contrast checker → · Palette generator →