#40308B#40308B

#40308B is a dark, vivid violet. Relative luminance 0.051; OKLCH L 38.4% C 0.144 H 285.4°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#40308B
RGB	rgb(64, 48, 139)
HSL	hsl(251, 49%, 37%)
HSV	hsv(251, 65%, 55%)
CMYK	cmyk(54%, 65.5%, 0%, 45.5%)
CIE-LAB	lab(26.93, 32.53, -48.44)
CIE-LCH	lch(26.93, 58.35, 303.89°)
OKLab	oklab(38.38% 0.0384 -0.139)
OKLCH	oklch(38.38% 0.144 285.4)
XYZ	xyz(7.8301, 5.0676, 24.9866)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40308B #7B8B30

analogous

#304E8B #40308B #6E308B

triadic

#40308B #8B4030 #308B40

tetradic

#40308B #8B304E #7B8B30 #308B6E

square

#40308B #8B304E #7B8B30 #308B6E

split-complementary

#40308B #8B6E30 #4E8B30

monochromatic

#161130 #2B205E #40308B #5540B8 #7B6ACC

Accessibility & contrast

On white

10.43

#40308B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#40308B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40308B

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40308B	#FFFFFF	#000000	##FFFFFF
##40308B	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#224659

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #40308b;
/* rgb */ color: rgb(64, 48, 139);
/* oklch */ color: oklch(38.4% 0.144 285.4);

Tailwind

colors: {
  custom: {
    50: '#7c69ae',
    500: '#40308b',
    950: '#000000',
  },
}

SCSS

$custom: #40308b;
$custom-light: #7c69ae;
$custom-dark: #000000;

JSON

{
  "hex": "#40308b",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 139
  },
  "hsl": {
    "h": 250.549,
    "s": 48.663,
    "l": 36.667
  },
  "oklch": {
    "l": 0.38384,
    "c": 0.14417,
    "h": 285.4
  },
  "luminance": 0.05068
}

Semantic roles & 50–950 ramp

primary

#40308B

secondary

#A5B364

accent

#D850C0

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #40308B

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

Preview Lab → · Contrast checker → · Palette generator →