#40318E#40318E

#40318E is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.8% C 0.147 H 284.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#40318E
RGB	rgb(64, 49, 142)
HSL	hsl(250, 49%, 37%)
HSV	hsv(250, 65%, 56%)
CMYK	cmyk(54.9%, 65.5%, 0%, 44.3%)
CIE-LAB	lab(27.41, 32.88, -49.51)
CIE-LCH	lch(27.41, 59.44, 303.59°)
OKLab	oklab(38.81% 0.037 -0.1421)
OKLCH	oklch(38.81% 0.147 284.6)
XYZ	xyz(8.0937, 5.2392, 26.1707)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40318E #7F8E31

analogous

#31518E #40318E #6E318E

triadic

#40318E #8E4031 #318E40

tetradic

#40318E #8E3151 #7F8E31 #318E6E

square

#40318E #8E3151 #7F8E31 #318E6E

split-complementary

#40318E #8E6E31 #518E31

monochromatic

#171233 #2B2161 #40318E #5541BB #7C6DCD

Accessibility & contrast

On white

10.25

#40318E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#40318E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40318E

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40318E	#FFFFFF	#000000	##FFFFFF
##40318E	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004391

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#1F485B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #40318e;
/* rgb */ color: rgb(64, 49, 142);
/* oklch */ color: oklch(38.8% 0.147 284.6);

Tailwind

colors: {
  custom: {
    50: '#7d6ab0',
    500: '#40318e',
    950: '#000000',
  },
}

SCSS

$custom: #40318e;
$custom-light: #7d6ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#40318e",
  "rgb": {
    "r": 64,
    "g": 49,
    "b": 142
  },
  "hsl": {
    "h": 249.677,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.3881,
    "c": 0.14688,
    "h": 284.6
  },
  "luminance": 0.0524
}

Semantic roles & 50–950 ramp

primary

#40318E

secondary

#A8B467

accent

#D850C2

background

#F8F6FA

surface

#EFEBF5

border

#CAC6CF

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #40318E

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

Preview Lab → · Contrast checker → · Palette generator →