#403DBF#403DBF

#403DBF is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.196 H 276.1°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#403DBF
RGB	rgb(64, 61, 191)
HSL	hsl(241, 52%, 49%)
HSV	hsv(241, 68%, 75%)
CMYK	cmyk(66.5%, 68.1%, 0%, 25.1%)
CIE-LAB	lab(34.37, 41.71, -67.62)
CIE-LCH	lch(34.37, 79.45, 301.66°)
OKLab	oklab(45.17% 0.0209 -0.1952)
OKLCH	oklch(45.17% 0.196 276.1)
XYZ	xyz(13.1840, 8.1879, 50.1658)
Luminance	0.0819 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.64

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403DBF #BCBF3D

analogous

#3D7BBF #403DBF #813DBF

triadic

#403DBF #BF403D #3DBF40

tetradic

#403DBF #BF3D7B #BCBF3D #3DBF81

square

#403DBF #BF3D7B #BCBF3D #3DBF81

split-complementary

#403DBF #BF813D #7BBF3D

monochromatic

#211F62 #302E91 #403DBF #6C6ACF #9A98DE

Accessibility & contrast

On white

7.96

#403DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#403DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DBF

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DBF	#FFFFFF	#000000	##FFFFFF
##403DBF	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #403dbf;
/* rgb */ color: rgb(64, 61, 191);
/* oklch */ color: oklch(45.2% 0.196 276.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#403dbf",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 191
  },
  "hsl": {
    "h": 241.385,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.4517,
    "c": 0.19635,
    "h": 276.1
  },
  "luminance": 0.08189
}

Semantic roles & 50–950 ramp

primary

#403DBF

secondary

#C9CA8E

accent

#DB4DD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403DBF

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

Preview Lab → · Contrast checker → · Palette generator →