#40319D#40319D

#40319D is a dark, vivid blue. Relative luminance 0.057; OKLCH L 40.1% C 0.167 H 282.2°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#40319D
RGB	rgb(64, 49, 157)
HSL	hsl(248, 52%, 40%)
HSV	hsv(248, 69%, 62%)
CMYK	cmyk(59.2%, 68.8%, 0%, 38.4%)
CIE-LAB	lab(28.70, 37.72, -56.61)
CIE-LCH	lch(28.70, 68.02, 303.68°)
OKLab	oklab(40.14% 0.0351 -0.163)
OKLCH	oklch(40.14% 0.167 282.2)
XYZ	xyz(9.2966, 5.7203, 32.5060)
Luminance	0.0572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40319D #8E9D31

analogous

#31589D #40319D #76319D

triadic

#40319D #9D4031 #319D40

tetradic

#40319D #9D3158 #8E9D31 #319D76

square

#40319D #9D3158 #8E9D31 #319D76

split-complementary

#40319D #9D7631 #589D31

monochromatic

#1A1440 #2D226E #40319D #5846C5 #8275D4

Accessibility & contrast

On white

9.79

#40319D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#40319D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40319D

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40319D	#FFFFFF	#000000	##FFFFFF
##40319D	1.00	9.79	2.14	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A0

Deuteranopia (green-blind)

#00409B

Tritanopia (blue-blind)

#064D63

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40319d;
/* rgb */ color: rgb(64, 49, 157);
/* oklch */ color: oklch(40.1% 0.167 282.2);

Tailwind

colors: {
  custom: {
    50: '#7f6abb',
    500: '#40319d',
    950: '#000000',
  },
}

SCSS

$custom: #40319d;
$custom-light: #7f6abb;
$custom-dark: #000000;

JSON

{
  "hex": "#40319d",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 157
  },
  "hsl": {
    "h": 248.333,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.40143,
    "c": 0.1667,
    "h": 282.2
  },
  "luminance": 0.05721
}

Semantic roles & 50–950 ramp

primary

#40319D

secondary

#B1BC6E

accent

#DC4CC8

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #40319D

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

Preview Lab → · Contrast checker → · Palette generator →