#403FD8#403FD8

#403FD8 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.8% C 0.225 H 274.1°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#403FD8
RGB	rgb(64, 63, 216)
HSL	hsl(240, 66%, 55%)
HSV	hsv(240, 71%, 85%)
CMYK	cmyk(70.4%, 70.8%, 0%, 15.3%)
CIE-LAB	lab(37.12, 48.74, -77.64)
CIE-LCH	lch(37.12, 91.67, 302.12°)
OKLab	oklab(47.85% 0.0161 -0.2245)
OKLCH	oklch(47.85% 0.225 274.1)
XYZ	xyz(16.2824, 9.6013, 65.9476)
Luminance	0.0960 (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

#403FD8 #D7D83F

analogous

#3F8BD8 #403FD8 #8C3FD8

triadic

#403FD8 #D8403F #3FD840

tetradic

#403FD8 #D83F8B #D7D83F #3FD88C

square

#403FD8 #D83F8B #D7D83F #3FD88C

split-complementary

#403FD8 #D88C3F #8BD83F

monochromatic

#1B1A82 #2625B5 #403FD8 #7372E2 #A5A5ED

Accessibility & contrast

On white

7.19

#403FD8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#403FD8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FD8

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FD8	#FFFFFF	#000000	##FFFFFF
##403FD8	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EDD

Deuteranopia (green-blind)

#0050D5

Tritanopia (blue-blind)

#006A87

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #403fd8;
/* rgb */ color: rgb(64, 63, 216);
/* oklch */ color: oklch(47.8% 0.225 274.1);

Tailwind

colors: {
  custom: {
    50: '#8a75e5',
    500: '#403fd8',
    950: '#000000',
  },
}

SCSS

$custom: #403fd8;
$custom-light: #8a75e5;
$custom-dark: #000000;

JSON

{
  "hex": "#403fd8",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 216
  },
  "hsl": {
    "h": 240.392,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.47847,
    "c": 0.22506,
    "h": 274.1
  },
  "luminance": 0.09603
}

Semantic roles & 50–950 ramp

primary

#403FD8

secondary

#D9DA99

accent

#E93FE8

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #403FD8

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

Preview Lab → · Contrast checker → · Palette generator →