#403FD7#403FD7

#403FD7 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.8% C 0.224 H 274.2°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#403FD7
RGB	rgb(64, 63, 215)
HSL	hsl(240, 66%, 55%)
HSV	hsv(240, 71%, 84%)
CMYK	cmyk(70.2%, 70.7%, 0%, 15.7%)
CIE-LAB	lab(37.02, 48.41, -77.22)
CIE-LCH	lch(37.02, 91.14, 302.09°)
OKLab	oklab(47.75% 0.0163 -0.2233)
OKLCH	oklch(47.75% 0.224 274.2)
XYZ	xyz(16.1535, 9.5497, 65.2688)
Luminance	0.0955 (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

#403FD7 #D6D73F

analogous

#3F8AD7 #403FD7 #8C3FD7

triadic

#403FD7 #D7403F #3FD740

tetradic

#403FD7 #D73F8A #D6D73F #3FD78C

square

#403FD7 #D73F8A #D6D73F #3FD78C

split-complementary

#403FD7 #D78C3F #8AD73F

monochromatic

#1B1B81 #2625B3 #403FD7 #7272E2 #A5A4EC

Accessibility & contrast

On white

7.22

#403FD7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#403FD7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FD7

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FD7	#FFFFFF	#000000	##FFFFFF
##403FD7	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EDC

Deuteranopia (green-blind)

#0050D4

Tritanopia (blue-blind)

#006987

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #403fd7;
/* rgb */ color: rgb(64, 63, 215);
/* oklch */ color: oklch(47.8% 0.224 274.2);

Tailwind

colors: {
  custom: {
    50: '#8a75e5',
    500: '#403fd7',
    950: '#000000',
  },
}

SCSS

$custom: #403fd7;
$custom-light: #8a75e5;
$custom-dark: #000000;

JSON

{
  "hex": "#403fd7",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 215
  },
  "hsl": {
    "h": 240.395,
    "s": 65.517,
    "l": 54.51
  },
  "oklch": {
    "l": 0.47751,
    "c": 0.22385,
    "h": 274.2
  },
  "luminance": 0.09551
}

Semantic roles & 50–950 ramp

primary

#403FD7

secondary

#D9D999

accent

#E83FE7

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #403FD7

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

Preview Lab → · Contrast checker → · Palette generator →