#40318D#40318D

#40318D is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.146 H 284.8°. Best body text is #FFFFFF at 10.28:1 contrast (WCAG AA passes).

Color values

HEX	#40318D
RGB	rgb(64, 49, 141)
HSL	hsl(250, 48%, 37%)
HSV	hsv(250, 65%, 55%)
CMYK	cmyk(54.6%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(27.32, 32.56, -49.03)
CIE-LCH	lch(27.32, 58.86, 303.59°)
OKLab	oklab(38.72% 0.0371 -0.1407)
OKLCH	oklch(38.72% 0.146 284.8)
XYZ	xyz(8.0189, 5.2093, 25.7771)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40318D #7E8D31

analogous

#31508D #40318D #6E318D

triadic

#40318D #8D4031 #318D40

tetradic

#40318D #8D3150 #7E8D31 #318D6E

square

#40318D #8D3150 #7E8D31 #318D6E

split-complementary

#40318D #8D6E31 #508D31

monochromatic

#171132 #2B2160 #40318D #5541BA #7C6CCC

Accessibility & contrast

On white

10.28

#40318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#40318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40318D

10.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40318D	#FFFFFF	#000000	##FFFFFF
##40318D	1.00	10.28	2.04	10.28
#FFFFFF	10.28	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004390

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#20475A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #40318d;
/* rgb */ color: rgb(64, 49, 141);
/* oklch */ color: oklch(38.7% 0.146 284.8);

Tailwind

colors: {
  custom: {
    50: '#7c6aaf',
    500: '#40318d',
    950: '#000000',
  },
}

SCSS

$custom: #40318d;
$custom-light: #7c6aaf;
$custom-dark: #000000;

JSON

{
  "hex": "#40318d",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 249.783,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.38724,
    "c": 0.14553,
    "h": 284.8
  },
  "luminance": 0.0521
}

Semantic roles & 50–950 ramp

primary

#40318D

secondary

#A7B466

accent

#D850C2

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #40318D

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

Preview Lab → · Contrast checker → · Palette generator →