#40319F#40319F

#40319F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.3% C 0.169 H 281.9°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#40319F
RGB	rgb(64, 49, 159)
HSL	hsl(248, 53%, 41%)
HSV	hsv(248, 69%, 62%)
CMYK	cmyk(59.7%, 69.2%, 0%, 37.6%)
CIE-LAB	lab(28.87, 38.36, -57.53)
CIE-LCH	lch(28.87, 69.15, 303.70°)
OKLab	oklab(40.33% 0.0348 -0.1657)
OKLCH	oklch(40.33% 0.169 281.9)
XYZ	xyz(9.4687, 5.7892, 33.4126)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.65

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40319F #909F31

analogous

#31599F #40319F #77319F

triadic

#40319F #9F4031 #319F40

tetradic

#40319F #9F3159 #909F31 #319F77

square

#40319F #9F3159 #909F31 #319F77

split-complementary

#40319F #9F7731 #599F31

monochromatic

#1A1441 #2D2370 #40319F #5847C6 #8376D5

Accessibility & contrast

On white

9.73

#40319F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#40319F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40319F

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40319F	#FFFFFF	#000000	##FFFFFF
##40319F	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#004E64

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40319f;
/* rgb */ color: rgb(64, 49, 159);
/* oklch */ color: oklch(40.3% 0.169 281.9);

Tailwind

colors: {
  custom: {
    50: '#806abc',
    500: '#40319f',
    950: '#000000',
  },
}

SCSS

$custom: #40319f;
$custom-light: #806abc;
$custom-dark: #000000;

JSON

{
  "hex": "#40319f",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 159
  },
  "hsl": {
    "h": 248.182,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.40327,
    "c": 0.16929,
    "h": 281.9
  },
  "luminance": 0.0579
}

Semantic roles & 50–950 ramp

primary

#40319F

secondary

#B2BD6F

accent

#DC4CC9

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #40319F

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

Preview Lab → · Contrast checker → · Palette generator →