#403FC5#403FC5

#403FC5 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.0% C 0.202 H 275.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#403FC5
RGB	rgb(64, 63, 197)
HSL	hsl(240, 54%, 51%)
HSV	hsv(240, 68%, 77%)
CMYK	cmyk(67.5%, 68%, 0%, 22.7%)
CIE-LAB	lab(35.35, 42.51, -69.53)
CIE-LCH	lch(35.35, 81.49, 301.44°)
OKLab	oklab(46.04% 0.0188 -0.2008)
OKLCH	oklch(46.04% 0.202 275.3)
XYZ	xyz(13.9666, 8.6750, 53.7509)
Luminance	0.0868 (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

#403FC5 #C4C53F

analogous

#3F81C5 #403FC5 #833FC5

triadic

#403FC5 #C5403F #3FC540

tetradic

#403FC5 #C53F81 #C4C53F #3FC583

square

#403FC5 #C53F81 #C4C53F #3FC583

split-complementary

#403FC5 #C5833F #81C53F

monochromatic

#20206A #2F2E99 #403FC5 #6F6ED3 #9E9DE1

Accessibility & contrast

On white

7.68

#403FC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#403FC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FC5

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FC5	#FFFFFF	#000000	##FFFFFF
##403FC5	1.00	7.68	2.74	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C9

Deuteranopia (green-blind)

#004DC2

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #403fc5;
/* rgb */ color: rgb(64, 63, 197);
/* oklch */ color: oklch(46.0% 0.202 275.3);

Tailwind

colors: {
  custom: {
    50: '#8675d8',
    500: '#403fc5',
    950: '#000000',
  },
}

SCSS

$custom: #403fc5;
$custom-light: #8675d8;
$custom-dark: #000000;

JSON

{
  "hex": "#403fc5",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 197
  },
  "hsl": {
    "h": 240.448,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46043,
    "c": 0.20169,
    "h": 275.3
  },
  "luminance": 0.08676
}

Semantic roles & 50–950 ramp

primary

#403FC5

secondary

#CDCE92

accent

#DD4BDC

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #403FC5

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

Preview Lab → · Contrast checker → · Palette generator →