#40347E#40347E

#40347E is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.0% C 0.120 H 286.6°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#40347E
RGB	rgb(64, 52, 126)
HSL	hsl(250, 42%, 35%)
HSV	hsv(250, 59%, 49%)
CMYK	cmyk(49.2%, 58.7%, 0%, 50.6%)
CIE-LAB	lab(26.88, 25.81, -40.39)
CIE-LCH	lch(26.88, 47.93, 302.58°)
OKLab	oklab(38.03% 0.0345 -0.1153)
OKLCH	oklch(38.03% 0.12 286.6)
XYZ	xyz(7.1071, 5.0520, 20.3353)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40347E #727E34

analogous

#344D7E #40347E #65347E

triadic

#40347E #7E4034 #347E40

tetradic

#40347E #7E344D #727E34 #347E65

square

#40347E #7E344D #727E34 #347E65

split-complementary

#40347E #7E6534 #4D7E34

monochromatic

#141027 #2A2253 #40347E #5646A9 #796BC2

Accessibility & contrast

On white

10.45

#40347E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#40347E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40347E

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40347E	#FFFFFF	#000000	##FFFFFF
##40347E	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044180

Deuteranopia (green-blind)

#033D7C

Tritanopia (blue-blind)

#2B4553

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40347e;
/* rgb */ color: rgb(64, 52, 126);
/* oklch */ color: oklch(38.0% 0.120 286.6);

Tailwind

colors: {
  custom: {
    50: '#7a6ca4',
    500: '#40347e',
    950: '#000000',
  },
}

SCSS

$custom: #40347e;
$custom-light: #7a6ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#40347e",
  "rgb": {
    "r": 64,
    "g": 52,
    "b": 126
  },
  "hsl": {
    "h": 249.73,
    "s": 41.573,
    "l": 34.902
  },
  "oklch": {
    "l": 0.38033,
    "c": 0.12032,
    "h": 286.6
  },
  "luminance": 0.05052
}

Semantic roles & 50–950 ramp

primary

#40347E

secondary

#9FAA64

accent

#D156BD

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A070F

muted

#7C7A7F

Preview Lab

Preview with #40347E

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

Preview Lab → · Contrast checker → · Palette generator →