#40338F#40338F

#40338F is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.2% C 0.146 H 283.9°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#40338F
RGB	rgb(64, 51, 143)
HSL	hsl(248, 47%, 38%)
HSV	hsv(248, 64%, 56%)
CMYK	cmyk(55.2%, 64.3%, 0%, 43.9%)
CIE-LAB	lab(27.95, 31.97, -49.24)
CIE-LCH	lch(27.95, 58.70, 302.99°)
OKLab	oklab(39.24% 0.0349 -0.1413)
OKLCH	oklch(39.24% 0.146 283.9)
XYZ	xyz(8.2546, 5.4403, 26.5964)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40338F #828F33

analogous

#33548F #40338F #6E338F

triadic

#40338F #8F4033 #338F40

tetradic

#40338F #8F3354 #828F33 #338F6E

square

#40338F #8F3354 #828F33 #338F6E

split-complementary

#40338F #8F6E33 #548F33

monochromatic

#181335 #2C2362 #40338F #5443BC #7D70CC

Accessibility & contrast

On white

10.06

#40338F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#40338F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40338F

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40338F	#FFFFFF	#000000	##FFFFFF
##40338F	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004592

Deuteranopia (green-blind)

#003F8D

Tritanopia (blue-blind)

#1E495C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40338f;
/* rgb */ color: rgb(64, 51, 143);
/* oklch */ color: oklch(39.2% 0.146 283.9);

Tailwind

colors: {
  custom: {
    50: '#7d6bb1',
    500: '#40338f',
    950: '#000000',
  },
}

SCSS

$custom: #40338f;
$custom-light: #7d6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#40338f",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 143
  },
  "hsl": {
    "h": 248.478,
    "s": 47.423,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39235,
    "c": 0.14556,
    "h": 283.9
  },
  "luminance": 0.05441
}

Semantic roles & 50–950 ramp

primary

#40338F

secondary

#AAB46A

accent

#D751C4

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #40338F

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

Preview Lab → · Contrast checker → · Palette generator →