#40348D#40348D

#40348D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.141 H 283.9°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#40348D
RGB	rgb(64, 52, 141)
HSL	hsl(248, 46%, 38%)
HSV	hsv(248, 63%, 55%)
CMYK	cmyk(54.6%, 63.1%, 0%, 44.7%)
CIE-LAB	lab(28.03, 30.69, -47.88)
CIE-LCH	lch(28.03, 56.87, 302.66°)
OKLab	oklab(39.24% 0.034 -0.1373)
OKLCH	oklch(39.24% 0.141 283.9)
XYZ	xyz(8.1486, 5.4686, 25.8203)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40348D #818D34

analogous

#34548D #40348D #6C348D

triadic

#40348D #8D4034 #348D40

tetradic

#40348D #8D3454 #818D34 #348D6C

square

#40348D #8D3454 #818D34 #348D6C

split-complementary

#40348D #8D6C34 #548D34

monochromatic

#171334 #2C2460 #40348D #5444BA #7D71CB

Accessibility & contrast

On white

10.03

#40348D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#40348D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40348D

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40348D	#FFFFFF	#000000	##FFFFFF
##40348D	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004590

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#20495B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40348d;
/* rgb */ color: rgb(64, 52, 141);
/* oklch */ color: oklch(39.2% 0.141 283.9);

Tailwind

colors: {
  custom: {
    50: '#7c6caf',
    500: '#40348d',
    950: '#000000',
  },
}

SCSS

$custom: #40348d;
$custom-light: #7c6caf;
$custom-dark: #000000;

JSON

{
  "hex": "#40348d",
  "rgb": {
    "r": 64,
    "g": 52,
    "b": 141
  },
  "hsl": {
    "h": 248.09,
    "s": 46.114,
    "l": 37.843
  },
  "oklch": {
    "l": 0.3924,
    "c": 0.14146,
    "h": 283.9
  },
  "luminance": 0.05469
}

Semantic roles & 50–950 ramp

primary

#40348D

secondary

#A9B36A

accent

#D652C4

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40348D

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

Preview Lab → · Contrast checker → · Palette generator →