#40319E#40319E

#40319E is a dark, vivid blue. Relative luminance 0.058; OKLCH L 40.2% C 0.168 H 282.0°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#40319E
RGB	rgb(64, 49, 158)
HSL	hsl(248, 53%, 41%)
HSV	hsv(248, 69%, 62%)
CMYK	cmyk(59.5%, 69%, 0%, 38%)
CIE-LAB	lab(28.78, 38.04, -57.07)
CIE-LCH	lch(28.78, 68.59, 303.69°)
OKLab	oklab(40.24% 0.035 -0.1643)
OKLCH	oklch(40.24% 0.168 282)
XYZ	xyz(9.3823, 5.7546, 32.9575)
Luminance	0.0575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40319E #8F9E31

analogous

#31589E #40319E #76319E

triadic

#40319E #9E4031 #319E40

tetradic

#40319E #9E3158 #8F9E31 #319E76

square

#40319E #9E3158 #8F9E31 #319E76

split-complementary

#40319E #9E7631 #589E31

monochromatic

#1A1441 #2D236F #40319E #5846C6 #8275D4

Accessibility & contrast

On white

9.76

#40319E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#40319E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40319E

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40319E	#FFFFFF	#000000	##FFFFFF
##40319E	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#034D63

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #40319e;
/* rgb */ color: rgb(64, 49, 158);
/* oklch */ color: oklch(40.2% 0.168 282.0);

Tailwind

colors: {
  custom: {
    50: '#7f6abc',
    500: '#40319e',
    950: '#000000',
  },
}

SCSS

$custom: #40319e;
$custom-light: #7f6abc;
$custom-dark: #000000;

JSON

{
  "hex": "#40319e",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 158
  },
  "hsl": {
    "h": 248.257,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40235,
    "c": 0.168,
    "h": 282
  },
  "luminance": 0.05755
}

Semantic roles & 50–950 ramp

primary

#40319E

secondary

#B2BC6E

accent

#DC4CC8

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #40319E

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

Preview Lab → · Contrast checker → · Palette generator →