#40339D#40339D

#40339D is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.5% C 0.164 H 281.7°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#40339D
RGB	rgb(64, 51, 157)
HSL	hsl(247, 51%, 41%)
HSV	hsv(247, 68%, 62%)
CMYK	cmyk(59.2%, 67.5%, 0%, 38.4%)
CIE-LAB	lab(29.14, 36.52, -55.89)
CIE-LCH	lch(29.14, 66.76, 303.17°)
OKLab	oklab(40.46% 0.0334 -0.1608)
OKLCH	oklch(40.46% 0.164 281.7)
XYZ	xyz(9.3821, 5.8913, 32.5345)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40339D #909D33

analogous

#335B9D #40339D #75339D

triadic

#40339D #9D4033 #339D40

tetradic

#40339D #9D335B #909D33 #339D75

square

#40339D #9D335B #909D33 #339D75

split-complementary

#40339D #9D7533 #5B9D33

monochromatic

#1A1541 #2D246F #40339D #5849C4 #8377D3

Accessibility & contrast

On white

9.64

#40339D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#40339D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40339D

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40339D	#FFFFFF	#000000	##FFFFFF
##40339D	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#054E63

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #40339d;
/* rgb */ color: rgb(64, 51, 157);
/* oklch */ color: oklch(40.5% 0.164 281.7);

Tailwind

colors: {
  custom: {
    50: '#7f6cbb',
    500: '#40339d',
    950: '#000000',
  },
}

SCSS

$custom: #40339d;
$custom-light: #7f6cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#40339d",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 157
  },
  "hsl": {
    "h": 247.358,
    "s": 50.962,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40461,
    "c": 0.16426,
    "h": 281.7
  },
  "luminance": 0.05892
}

Semantic roles & 50–950 ramp

primary

#40339D

secondary

#B2BB70

accent

#DA4DC9

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #40339D

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

Preview Lab → · Contrast checker → · Palette generator →