#40519D#40519D

#40519D is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.1% C 0.124 H 271.3°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#40519D
RGB	rgb(64, 81, 157)
HSL	hsl(229, 42%, 43%)
HSV	hsv(229, 59%, 62%)
CMYK	cmyk(59.2%, 48.4%, 0%, 38.4%)
CIE-LAB	lab(36.76, 17.29, -43.54)
CIE-LCH	lch(36.76, 46.85, 291.65°)
OKLab	oklab(46.12% 0.0028 -0.1243)
OKLCH	oklch(46.12% 0.124 271.3)
XYZ	xyz(11.1406, 9.4083, 33.1207)
Luminance	0.0941 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40519D #9D8C40

analogous

#407F9D #40519D #5D409D

triadic

#40519D #9D4051 #519D40

tetradic

#40519D #9D407F #9D8C40 #409D5D

square

#40519D #9D407F #9D8C40 #409D5D

split-complementary

#40519D #9D5D40 #7F9D40

monochromatic

#1D2446 #2E3B72 #40519D #5D6FBD #8995CF

Accessibility & contrast

On white

7.29

#40519D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#40519D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40519D

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40519D	#FFFFFF	#000000	##FFFFFF
##40519D	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5BA0

Deuteranopia (green-blind)

#1E539B

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #40519d;
/* rgb */ color: rgb(64, 81, 157);
/* oklch */ color: oklch(46.1% 0.124 271.3);

Tailwind

colors: {
  custom: {
    50: '#7d81ba',
    500: '#40519d',
    950: '#000000',
  },
}

SCSS

$custom: #40519d;
$custom-light: #7d81ba;
$custom-dark: #000000;

JSON

{
  "hex": "#40519d",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 157
  },
  "hsl": {
    "h": 229.032,
    "s": 42.081,
    "l": 43.333
  },
  "oklch": {
    "l": 0.46124,
    "c": 0.12435,
    "h": 271.3
  },
  "luminance": 0.09409
}

Semantic roles & 50–950 ramp

primary

#40519D

secondary

#B9AF7F

accent

#BB56D2

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #40519D

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

Preview Lab → · Contrast checker → · Palette generator →