#403683#403683

#403683 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.8% C 0.125 H 284.9°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#403683
RGB	rgb(64, 54, 131)
HSL	hsl(248, 42%, 36%)
HSV	hsv(248, 59%, 51%)
CMYK	cmyk(51.1%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(27.75, 26.14, -42.11)
CIE-LCH	lch(27.75, 49.56, 301.83°)
OKLab	oklab(38.79% 0.032 -0.1203)
OKLCH	oklch(38.79% 0.125 284.9)
XYZ	xyz(7.5290, 5.3666, 22.1075)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403683 #798336

analogous

#365383 #403683 #673683

triadic

#403683 #834036 #368340

tetradic

#403683 #833653 #798336 #368367

square

#403683 #833653 #798336 #368367

split-complementary

#403683 #836736 #538336

monochromatic

#16122C #2B2458 #403683 #5548AE #7A70C4

Accessibility & contrast

On white

10.13

#403683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#403683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403683

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403683	#FFFFFF	#000000	##FFFFFF
##403683	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004486

Deuteranopia (green-blind)

#003F81

Tritanopia (blue-blind)

#284757

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #403683;
/* rgb */ color: rgb(64, 54, 131);
/* oklch */ color: oklch(38.8% 0.125 284.9);

Tailwind

colors: {
  custom: {
    50: '#7a6da8',
    500: '#403683',
    950: '#000000',
  },
}

SCSS

$custom: #403683;
$custom-light: #7a6da8;
$custom-dark: #000000;

JSON

{
  "hex": "#403683",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 247.792,
    "s": 41.622,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38794,
    "c": 0.12454,
    "h": 284.9
  },
  "luminance": 0.05367
}

Semantic roles & 50–950 ramp

primary

#403683

secondary

#A4AC68

accent

#D156C1

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #403683

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

Preview Lab → · Contrast checker → · Palette generator →