#403BBE#403BBE

#403BBE is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.8% C 0.197 H 276.5°. Best body text is #FFFFFF at 8.12:1 contrast (WCAG AA passes).

Color values

HEX	#403BBE
RGB	rgb(64, 59, 190)
HSL	hsl(242, 53%, 49%)
HSV	hsv(242, 69%, 75%)
CMYK	cmyk(66.3%, 68.9%, 0%, 25.5%)
CIE-LAB	lab(33.85, 42.56, -67.90)
CIE-LCH	lch(33.85, 80.13, 302.08°)
OKLab	oklab(44.76% 0.0225 -0.196)
OKLCH	oklch(44.76% 0.197 276.5)
XYZ	xyz(12.9695, 7.9345, 49.5532)
Luminance	0.0794 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.83

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403BBE #B9BE3B

analogous

#3B78BE #403BBE #823BBE

triadic

#403BBE #BE403B #3BBE40

tetradic

#403BBE #BE3B78 #B9BE3B #3BBE82

square

#403BBE #BE3B78 #B9BE3B #3BBE82

split-complementary

#403BBE #BE823B #78BE3B

monochromatic

#211E61 #302C8F #403BBE #6B67D0 #9895DE

Accessibility & contrast

On white

8.12

#403BBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#403BBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BBE

8.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BBE	#FFFFFF	#000000	##FFFFFF
##403BBE	1.00	8.12	2.59	8.12
#FFFFFF	8.12	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C2

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403bbe;
/* rgb */ color: rgb(64, 59, 190);
/* oklch */ color: oklch(44.8% 0.197 276.5);

Tailwind

colors: {
  custom: {
    50: '#8572d3',
    500: '#403bbe',
    950: '#000000',
  },
}

SCSS

$custom: #403bbe;
$custom-light: #8572d3;
$custom-dark: #000000;

JSON

{
  "hex": "#403bbe",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 190
  },
  "hsl": {
    "h": 242.29,
    "s": 52.61,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44764,
    "c": 0.19731,
    "h": 276.5
  },
  "luminance": 0.07936
}

Semantic roles & 50–950 ramp

primary

#403BBE

secondary

#C7CA8B

accent

#DC4CD7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403BBE

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

Preview Lab → · Contrast checker → · Palette generator →