#40339A#40339A

#40339A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.160 H 282.1°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#40339A
RGB	rgb(64, 51, 154)
HSL	hsl(248, 50%, 40%)
HSV	hsv(248, 67%, 60%)
CMYK	cmyk(58.4%, 66.9%, 0%, 39.6%)
CIE-LAB	lab(28.88, 35.55, -54.48)
CIE-LCH	lch(28.88, 65.05, 303.12°)
OKLab	oklab(40.19% 0.0337 -0.1567)
OKLCH	oklch(40.19% 0.16 282.1)
XYZ	xyz(9.1291, 5.7901, 31.2021)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.14

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40339A #8D9A33

analogous

#33599A #40339A #74339A

triadic

#40339A #9A4033 #339A40

tetradic

#40339A #9A3359 #8D9A33 #339A74

square

#40339A #9A3359 #8D9A33 #339A74

split-complementary

#40339A #9A7433 #599A33

monochromatic

#1A153E #2D246C #40339A #5748C2 #8176D2

Accessibility & contrast

On white

9.73

#40339A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#40339A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40339A

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40339A	#FFFFFF	#000000	##FFFFFF
##40339A	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489D

Deuteranopia (green-blind)

#004098

Tritanopia (blue-blind)

#0D4D62

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40339a;
/* rgb */ color: rgb(64, 51, 154);
/* oklch */ color: oklch(40.2% 0.160 282.1);

Tailwind

colors: {
  custom: {
    50: '#7f6cb9',
    500: '#40339a',
    950: '#000000',
  },
}

SCSS

$custom: #40339a;
$custom-light: #7f6cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#40339a",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 154
  },
  "hsl": {
    "h": 247.573,
    "s": 50.244,
    "l": 40.196
  },
  "oklch": {
    "l": 0.40193,
    "c": 0.16032,
    "h": 282.1
  },
  "luminance": 0.05791
}

Semantic roles & 50–950 ramp

primary

#40339A

secondary

#B0BA6F

accent

#DA4EC8

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #40339A

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

Preview Lab → · Contrast checker → · Palette generator →