#40307B#40307B

#40307B is a dark, vivid violet. Relative luminance 0.046; OKLCH L 37.1% C 0.122 H 288.8°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#40307B
RGB	rgb(64, 48, 123)
HSL	hsl(253, 44%, 34%)
HSV	hsv(253, 61%, 48%)
CMYK	cmyk(48%, 61%, 0%, 51.8%)
CIE-LAB	lab(25.66, 27.42, -40.46)
CIE-LCH	lch(25.66, 48.88, 304.13°)
OKLab	oklab(37.06% 0.0394 -0.1155)
OKLCH	oklch(37.06% 0.122 288.8)
XYZ	xyz(6.7454, 4.6337, 19.2740)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40307B #6B7B30

analogous

#30457B #40307B #65307B

triadic

#40307B #7B4030 #307B40

tetradic

#40307B #7B3045 #6B7B30 #307B65

square

#40307B #7B3045 #6B7B30 #307B65

split-complementary

#40307B #7B6530 #457B30

monochromatic

#120E23 #291F4F #40307B #5741A7 #7763C2

Accessibility & contrast

On white

10.90

#40307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#40307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40307B

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40307B	#FFFFFF	#000000	##FFFFFF
##40307B	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7D

Deuteranopia (green-blind)

#003B79

Tritanopia (blue-blind)

#2D4150

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #40307b;
/* rgb */ color: rgb(64, 48, 123);
/* oklch */ color: oklch(37.1% 0.122 288.8);

Tailwind

colors: {
  custom: {
    50: '#7a69a2',
    500: '#40307b',
    950: '#000000',
  },
}

SCSS

$custom: #40307b;
$custom-light: #7a69a2;
$custom-dark: #000000;

JSON

{
  "hex": "#40307b",
  "rgb": {
    "r": 64,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 252.8,
    "s": 43.86,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37064,
    "c": 0.12206,
    "h": 288.8
  },
  "luminance": 0.04634
}

Semantic roles & 50–950 ramp

primary

#40307B

secondary

#99A95D

accent

#D454B8

background

#F7F6FA

surface

#EEEBF3

border

#C9C6CD

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #40307B

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

Preview Lab → · Contrast checker → · Palette generator →