#403FD5#403FD5

#403FD5 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.6% C 0.221 H 274.3°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#403FD5
RGB	rgb(64, 63, 213)
HSL	hsl(240, 64%, 54%)
HSV	hsv(240, 70%, 84%)
CMYK	cmyk(70%, 70.4%, 0%, 16.5%)
CIE-LAB	lab(36.83, 47.77, -76.38)
CIE-LCH	lch(36.83, 90.08, 302.02°)
OKLab	oklab(47.56% 0.0166 -0.2208)
OKLCH	oklch(47.56% 0.221 274.3)
XYZ	xyz(15.8981, 9.4476, 63.9236)
Luminance	0.0945 (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

#403FD5 #D4D53F

analogous

#3F89D5 #403FD5 #8B3FD5

triadic

#403FD5 #D5403F #3FD540

tetradic

#403FD5 #D53F89 #D4D53F #3FD58B

square

#403FD5 #D53F89 #D4D53F #3FD58B

split-complementary

#403FD5 #D58B3F #89D53F

monochromatic

#1C1C7E #2727B0 #403FD5 #7271E0 #A4A3EB

Accessibility & contrast

On white

7.27

#403FD5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#403FD5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FD5

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FD5	#FFFFFF	#000000	##FFFFFF
##403FD5	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED9

Deuteranopia (green-blind)

#0050D2

Tritanopia (blue-blind)

#006986

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #403fd5;
/* rgb */ color: rgb(64, 63, 213);
/* oklch */ color: oklch(47.6% 0.221 274.3);

Tailwind

colors: {
  custom: {
    50: '#8975e3',
    500: '#403fd5',
    950: '#000000',
  },
}

SCSS

$custom: #403fd5;
$custom-light: #8975e3;
$custom-dark: #000000;

JSON

{
  "hex": "#403fd5",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 213
  },
  "hsl": {
    "h": 240.4,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.47557,
    "c": 0.22143,
    "h": 274.3
  },
  "luminance": 0.09449
}

Semantic roles & 50–950 ramp

primary

#403FD5

secondary

#D7D898

accent

#E741E6

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #403FD5

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

Preview Lab → · Contrast checker → · Palette generator →