#403CBE#403CBE

#403CBE is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.9% C 0.196 H 276.4°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#403CBE
RGB	rgb(64, 60, 190)
HSL	hsl(242, 52%, 49%)
HSV	hsv(242, 68%, 75%)
CMYK	cmyk(66.3%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(34.06, 41.97, -67.54)
CIE-LCH	lch(34.06, 79.52, 301.86°)
OKLab	oklab(44.92% 0.0218 -0.195)
OKLCH	oklch(44.92% 0.196 276.4)
XYZ	xyz(13.0214, 8.0383, 49.5705)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.70

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403CBE #BABE3C

analogous

#3C79BE #403CBE #813CBE

triadic

#403CBE #BE403C #3CBE40

tetradic

#403CBE #BE3C79 #BABE3C #3CBE81

square

#403CBE #BE3C79 #BABE3C #3CBE81

split-complementary

#403CBE #BE813C #79BE3C

monochromatic

#211F61 #302D8F #403CBE #6B68CF #9996DE

Accessibility & contrast

On white

8.05

#403CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#403CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CBE

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CBE	#FFFFFF	#000000	##FFFFFF
##403CBE	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403cbe;
/* rgb */ color: rgb(64, 60, 190);
/* oklch */ color: oklch(44.9% 0.196 276.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#403cbe",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 241.846,
    "s": 52,
    "l": 49.02
  },
  "oklch": {
    "l": 0.4492,
    "c": 0.1962,
    "h": 276.4
  },
  "luminance": 0.08039
}

Semantic roles & 50–950 ramp

primary

#403CBE

secondary

#C8CA8C

accent

#DB4CD7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403CBE

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

Preview Lab → · Contrast checker → · Palette generator →