#403FC6#403FC6

#403FC6 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.1% C 0.203 H 275.3°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#403FC6
RGB	rgb(64, 63, 198)
HSL	hsl(240, 54%, 51%)
HSV	hsv(240, 68%, 78%)
CMYK	cmyk(67.7%, 68.2%, 0%, 22.4%)
CIE-LAB	lab(35.44, 42.84, -69.97)
CIE-LCH	lch(35.44, 82.04, 301.48°)
OKLab	oklab(46.14% 0.0187 -0.2021)
OKLCH	oklch(46.14% 0.203 275.3)
XYZ	xyz(14.0815, 8.7209, 54.3564)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FC6 #C5C63F

analogous

#3F81C6 #403FC6 #833FC6

triadic

#403FC6 #C6403F #3FC640

tetradic

#403FC6 #C63F81 #C5C63F #3FC683

square

#403FC6 #C63F81 #C5C63F #3FC683

split-complementary

#403FC6 #C6833F #81C63F

monochromatic

#20206B #2F2E9A #403FC6 #6F6ED4 #9E9DE2

Accessibility & contrast

On white

7.65

#403FC6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#403FC6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FC6

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FC6	#FFFFFF	#000000	##FFFFFF
##403FC6	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CA

Deuteranopia (green-blind)

#004DC3

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #403fc6;
/* rgb */ color: rgb(64, 63, 198);
/* oklch */ color: oklch(46.1% 0.203 275.3);

Tailwind

colors: {
  custom: {
    50: '#8675d8',
    500: '#403fc6',
    950: '#000000',
  },
}

SCSS

$custom: #403fc6;
$custom-light: #8675d8;
$custom-dark: #000000;

JSON

{
  "hex": "#403fc6",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 198
  },
  "hsl": {
    "h": 240.444,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46136,
    "c": 0.20294,
    "h": 275.3
  },
  "luminance": 0.08722
}

Semantic roles & 50–950 ramp

primary

#403FC6

secondary

#CECE93

accent

#DE4ADC

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #403FC6

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

Preview Lab → · Contrast checker → · Palette generator →