#40388C#40388C

#40388C is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.134 H 282.7°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#40388C
RGB	rgb(64, 56, 140)
HSL	hsl(246, 43%, 38%)
HSV	hsv(246, 60%, 55%)
CMYK	cmyk(54.3%, 60%, 0%, 45.1%)
CIE-LAB	lab(28.93, 27.81, -45.80)
CIE-LCH	lch(28.93, 53.58, 301.26°)
OKLab	oklab(39.88% 0.0297 -0.1312)
OKLCH	oklch(39.88% 0.134 282.7)
XYZ	xyz(8.2607, 5.8113, 25.4923)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40388C #848C38

analogous

#385A8C #40388C #6A388C

triadic

#40388C #8C4038 #388C40

tetradic

#40388C #8C385A #848C38 #388C6A

square

#40388C #8C385A #848C38 #388C6A

split-complementary

#40388C #8C6A38 #5A8C38

monochromatic

#181535 #2C2760 #40388C #554AB7 #7E76C8

Accessibility & contrast

On white

9.71

#40388C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#40388C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40388C

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40388C	#FFFFFF	#000000	##FFFFFF
##40388C	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00478F

Deuteranopia (green-blind)

#00418A

Tritanopia (blue-blind)

#204C5C

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40388c;
/* rgb */ color: rgb(64, 56, 140);
/* oklch */ color: oklch(39.9% 0.134 282.7);

Tailwind

colors: {
  custom: {
    50: '#7c6fae',
    500: '#40388c',
    950: '#000000',
  },
}

SCSS

$custom: #40388c;
$custom-light: #7c6fae;
$custom-dark: #000000;

JSON

{
  "hex": "#40388c",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 140
  },
  "hsl": {
    "h": 245.714,
    "s": 42.857,
    "l": 38.431
  },
  "oklch": {
    "l": 0.39877,
    "c": 0.13449,
    "h": 282.7
  },
  "luminance": 0.05812
}

Semantic roles & 50–950 ramp

primary

#40388C

secondary

#ABB16F

accent

#D355C7

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40388C

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

Preview Lab → · Contrast checker → · Palette generator →