#40368D#40368D

#40368D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.139 H 283.3°. Best body text is #FFFFFF at 9.86:1 contrast (WCAG AA passes).

Color values

HEX	#40368D
RGB	rgb(64, 54, 141)
HSL	hsl(247, 45%, 38%)
HSV	hsv(247, 62%, 55%)
CMYK	cmyk(54.6%, 61.7%, 0%, 44.7%)
CIE-LAB	lab(28.51, 29.42, -47.09)
CIE-LCH	lch(28.51, 55.53, 301.99°)
OKLab	oklab(39.59% 0.0318 -0.135)
OKLCH	oklch(39.59% 0.139 283.3)
XYZ	xyz(8.2398, 5.6509, 25.8507)
Luminance	0.0565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40368D #838D36

analogous

#36578D #40368D #6B368D

triadic

#40368D #8D4036 #368D40

tetradic

#40368D #8D3657 #838D36 #368D6B

square

#40368D #8D3657 #838D36 #368D6B

split-complementary

#40368D #8D6B36 #578D36

monochromatic

#181434 #2C2561 #40368D #5447B9 #7E74CA

Accessibility & contrast

On white

9.86

#40368D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#40368D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40368D

9.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40368D	#FFFFFF	#000000	##FFFFFF
##40368D	1.00	9.86	2.13	9.86
#FFFFFF	9.86	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#00408B

Tritanopia (blue-blind)

#1F4B5C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40368d;
/* rgb */ color: rgb(64, 54, 141);
/* oklch */ color: oklch(39.6% 0.139 283.3);

Tailwind

colors: {
  custom: {
    50: '#7c6daf',
    500: '#40368d',
    950: '#000000',
  },
}

SCSS

$custom: #40368d;
$custom-light: #7c6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#40368d",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 141
  },
  "hsl": {
    "h": 246.897,
    "s": 44.615,
    "l": 38.235
  },
  "oklch": {
    "l": 0.39594,
    "c": 0.1387,
    "h": 283.3
  },
  "luminance": 0.05651
}

Semantic roles & 50–950 ramp

primary

#40368D

secondary

#AAB26D

accent

#D453C6

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40368D

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

Preview Lab → · Contrast checker → · Palette generator →