#40368F#40368F

#40368F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.8% C 0.141 H 283.0°. Best body text is #FFFFFF at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#40368F
RGB	rgb(64, 54, 143)
HSL	hsl(247, 45%, 39%)
HSV	hsv(247, 62%, 56%)
CMYK	cmyk(55.2%, 62.2%, 0%, 43.9%)
CIE-LAB	lab(28.67, 30.08, -48.07)
CIE-LCH	lch(28.67, 56.71, 302.03°)
OKLab	oklab(39.76% 0.0317 -0.1379)
OKLCH	oklch(39.76% 0.141 283)
XYZ	xyz(8.3899, 5.7110, 26.6415)
Luminance	0.0571 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40368F #858F36

analogous

#36588F #40368F #6C368F

triadic

#40368F #8F4036 #368F40

tetradic

#40368F #8F3658 #858F36 #368F6C

square

#40368F #8F3658 #858F36 #368F6C

split-complementary

#40368F #8F6C36 #588F36

monochromatic

#181436 #2C2563 #40368F #5548BA #7E75CB

Accessibility & contrast

On white

9.80

#40368F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#40368F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40368F

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40368F	#FFFFFF	#000000	##FFFFFF
##40368F	1.00	9.80	2.14	9.80
#FFFFFF	9.80	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004792

Deuteranopia (green-blind)

#00418D

Tritanopia (blue-blind)

#1D4B5D

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40368f;
/* rgb */ color: rgb(64, 54, 143);
/* oklch */ color: oklch(39.8% 0.141 283.0);

Tailwind

colors: {
  custom: {
    50: '#7c6db0',
    500: '#40368f',
    950: '#000000',
  },
}

SCSS

$custom: #40368f;
$custom-light: #7c6db0;
$custom-dark: #000000;

JSON

{
  "hex": "#40368f",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 143
  },
  "hsl": {
    "h": 246.742,
    "s": 45.178,
    "l": 38.627
  },
  "oklch": {
    "l": 0.39759,
    "c": 0.14148,
    "h": 283
  },
  "luminance": 0.05711
}

Semantic roles & 50–950 ramp

primary

#40368F

secondary

#ACB36D

accent

#D553C6

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #40368F

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

Preview Lab → · Contrast checker → · Palette generator →