#40339F#40339F

#40339F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.6% C 0.167 H 281.4°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#40339F
RGB	rgb(64, 51, 159)
HSL	hsl(247, 51%, 41%)
HSV	hsv(247, 68%, 62%)
CMYK	cmyk(59.7%, 67.9%, 0%, 37.6%)
CIE-LAB	lab(29.31, 37.17, -56.81)
CIE-LCH	lch(29.31, 67.89, 303.20°)
OKLab	oklab(40.64% 0.0331 -0.1636)
OKLCH	oklch(40.64% 0.167 281.4)
XYZ	xyz(9.5542, 5.9602, 33.4411)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.49

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40339F #929F33

analogous

#335C9F #40339F #76339F

triadic

#40339F #9F4033 #339F40

tetradic

#40339F #9F335C #929F33 #339F76

square

#40339F #9F335C #929F33 #339F76

split-complementary

#40339F #9F7633 #5C9F33

monochromatic

#1B1542 #2D2471 #40339F #594AC5 #8479D4

Accessibility & contrast

On white

9.58

#40339F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#40339F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40339F

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40339F	#FFFFFF	#000000	##FFFFFF
##40339F	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A2

Deuteranopia (green-blind)

#00419D

Tritanopia (blue-blind)

#004F64

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #40339f;
/* rgb */ color: rgb(64, 51, 159);
/* oklch */ color: oklch(40.6% 0.167 281.4);

Tailwind

colors: {
  custom: {
    50: '#7f6cbc',
    500: '#40339f',
    950: '#000000',
  },
}

SCSS

$custom: #40339f;
$custom-light: #7f6cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#40339f",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 159
  },
  "hsl": {
    "h": 247.222,
    "s": 51.429,
    "l": 41.176
  },
  "oklch": {
    "l": 0.40642,
    "c": 0.16688,
    "h": 281.4
  },
  "luminance": 0.05961
}

Semantic roles & 50–950 ramp

primary

#40339F

secondary

#B3BC71

accent

#DB4DCA

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #40339F

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

Preview Lab → · Contrast checker → · Palette generator →