#403FDE#403FDE

#403FDE is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.4% C 0.232 H 273.7°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#403FDE
RGB	rgb(64, 63, 222)
HSL	hsl(240, 71%, 56%)
HSV	hsv(240, 72%, 87%)
CMYK	cmyk(71.2%, 71.6%, 0%, 12.9%)
CIE-LAB	lab(37.69, 50.67, -80.13)
CIE-LCH	lch(37.69, 94.81, 302.31°)
OKLab	oklab(48.43% 0.0152 -0.2317)
OKLCH	oklch(48.43% 0.232 273.7)
XYZ	xyz(17.0723, 9.9172, 70.1076)
Luminance	0.0992 (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

#403FDE #DDDE3F

analogous

#3F8EDE #403FDE #8F3FDE

triadic

#403FDE #DE403F #3FDE40

tetradic

#403FDE #DE3F8E #DDDE3F #3FDE8F

square

#403FDE #DE3F8E #DDDE3F #3FDE8F

split-complementary

#403FDE #DE8F3F #8EDE3F

monochromatic

#19188B #2221BF #403FDE #7473E7 #A8A7F0

Accessibility & contrast

On white

7.04

#403FDE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#403FDE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FDE

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FDE	#FFFFFF	#000000	##FFFFFF
##403FDE	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E3

Deuteranopia (green-blind)

#0051DB

Tritanopia (blue-blind)

#006C8B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #403fde;
/* rgb */ color: rgb(64, 63, 222);
/* oklch */ color: oklch(48.4% 0.232 273.7);

Tailwind

colors: {
  custom: {
    50: '#8b76ea',
    500: '#403fde',
    950: '#000000',
  },
}

SCSS

$custom: #403fde;
$custom-light: #8b76ea;
$custom-dark: #000000;

JSON

{
  "hex": "#403fde",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 222
  },
  "hsl": {
    "h": 240.377,
    "s": 70.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.48432,
    "c": 0.23225,
    "h": 273.7
  },
  "luminance": 0.09919
}

Semantic roles & 50–950 ramp

primary

#403FDE

secondary

#DDDD9B

accent

#ED3AEC

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #403FDE

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

Preview Lab → · Contrast checker → · Palette generator →