#40396D#40396D

#40396D is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.8% C 0.087 H 287.7°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#40396D
RGB	rgb(64, 57, 109)
HSL	hsl(248, 31%, 33%)
HSV	hsv(248, 48%, 43%)
CMYK	cmyk(41.3%, 47.7%, 0%, 57.3%)
CIE-LAB	lab(27.07, 17.08, -29.30)
CIE-LCH	lch(27.07, 33.92, 300.24°)
OKLab	oklab(37.81% 0.0264 -0.0827)
OKLCH	oklch(37.81% 0.087 287.7)
XYZ	xyz(6.3370, 5.1202, 15.1194)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40396D #666D39

analogous

#394C6D #40396D #5A396D

triadic

#40396D #6D4039 #396D40

tetradic

#40396D #6D394C #666D39 #396D5A

square

#40396D #6D394C #666D39 #396D5A

split-complementary

#40396D #6D5A39 #4C6D39

monochromatic

#110F1D #282445 #40396D #584E95 #776DB3

Accessibility & contrast

On white

10.38

#40396D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#40396D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40396D

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40396D	#FFFFFF	#000000	##FFFFFF
##40396D	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26416F

Deuteranopia (green-blind)

#263F6C

Tritanopia (blue-blind)

#34434D

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40396d;
/* rgb */ color: rgb(64, 57, 109);
/* oklch */ color: oklch(37.8% 0.087 287.7);

Tailwind

colors: {
  custom: {
    50: '#776f97',
    500: '#40396d',
    950: '#000000',
  },
}

SCSS

$custom: #40396d;
$custom-light: #776f97;
$custom-dark: #000000;

JSON

{
  "hex": "#40396d",
  "rgb": {
    "r": 64,
    "g": 57,
    "b": 109
  },
  "hsl": {
    "h": 248.077,
    "s": 31.325,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37812,
    "c": 0.08682,
    "h": 287.7
  },
  "luminance": 0.0512
}

Semantic roles & 50–950 ramp

primary

#40396D

secondary

#959D65

accent

#C860BA

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09070D

muted

#7B7A7E

Preview Lab

Preview with #40396D

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

Preview Lab → · Contrast checker → · Palette generator →