#40319A#40319A

#40319A is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.9% C 0.163 H 282.6°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#40319A
RGB	rgb(64, 49, 154)
HSL	hsl(249, 52%, 40%)
HSV	hsv(249, 68%, 60%)
CMYK	cmyk(58.4%, 68.2%, 0%, 39.6%)
CIE-LAB	lab(28.43, 36.75, -55.21)
CIE-LCH	lch(28.43, 66.33, 303.65°)
OKLab	oklab(39.87% 0.0356 -0.1589)
OKLCH	oklch(39.87% 0.163 282.6)
XYZ	xyz(9.0436, 5.6191, 31.1736)
Luminance	0.0562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40319A #8B9A31

analogous

#31579A #40319A #74319A

triadic

#40319A #9A4031 #319A40

tetradic

#40319A #9A3157 #8B9A31 #319A74

square

#40319A #9A3157 #8B9A31 #319A74

split-complementary

#40319A #9A7431 #579A31

monochromatic

#19133D #2D226C #40319A #5745C4 #8173D2

Accessibility & contrast

On white

9.89

#40319A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#40319A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40319A

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40319A	#FFFFFF	#000000	##FFFFFF
##40319A	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469D

Deuteranopia (green-blind)

#003F98

Tritanopia (blue-blind)

#0E4C61

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40319a;
/* rgb */ color: rgb(64, 49, 154);
/* oklch */ color: oklch(39.9% 0.163 282.6);

Tailwind

colors: {
  custom: {
    50: '#7f6ab9',
    500: '#40319a',
    950: '#000000',
  },
}

SCSS

$custom: #40319a;
$custom-light: #7f6ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#40319a",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 154
  },
  "hsl": {
    "h": 248.571,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.3987,
    "c": 0.1628,
    "h": 282.6
  },
  "luminance": 0.0562
}

Semantic roles & 50–950 ramp

primary

#40319A

secondary

#AFBA6C

accent

#DB4DC7

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0611

muted

#7C7A80

Preview Lab

Preview with #40319A

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

Preview Lab → · Contrast checker → · Palette generator →