#40337B#40337B

#40337B is a dark, moderate violet. Relative luminance 0.049; OKLCH L 37.6% C 0.117 H 287.7°. Best body text is #FFFFFF at 10.62:1 contrast (WCAG AA passes).

Color values

HEX	#40337B
RGB	rgb(64, 51, 123)
HSL	hsl(251, 41%, 34%)
HSV	hsv(251, 59%, 48%)
CMYK	cmyk(48%, 58.5%, 0%, 51.8%)
CIE-LAB	lab(26.41, 25.49, -39.26)
CIE-LCH	lch(26.41, 46.81, 303.00°)
OKLab	oklab(37.61% 0.0357 -0.112)
OKLCH	oklch(37.61% 0.118 287.7)
XYZ	xyz(6.8723, 4.8874, 19.3163)
Luminance	0.0489 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40337B #6E7B33

analogous

#334A7B #40337B #64337B

triadic

#40337B #7B4033 #337B40

tetradic

#40337B #7B334A #6E7B33 #337B64

square

#40337B #7B334A #6E7B33 #337B64

split-complementary

#40337B #7B6433 #4A7B33

monochromatic

#130F24 #292150 #40337B #5745A6 #7868C0

Accessibility & contrast

On white

10.62

#40337B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#40337B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40337B

10.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40337B	#FFFFFF	#000000	##FFFFFF
##40337B	1.00	10.62	1.98	10.62
#FFFFFF	10.62	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07407D

Deuteranopia (green-blind)

#073D79

Tritanopia (blue-blind)

#2D4351

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #40337b;
/* rgb */ color: rgb(64, 51, 123);
/* oklch */ color: oklch(37.6% 0.117 287.7);

Tailwind

colors: {
  custom: {
    50: '#796ba2',
    500: '#40337b',
    950: '#000000',
  },
}

SCSS

$custom: #40337b;
$custom-light: #796ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#40337b",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 123
  },
  "hsl": {
    "h": 250.833,
    "s": 41.379,
    "l": 34.118
  },
  "oklch": {
    "l": 0.37615,
    "c": 0.1175,
    "h": 287.7
  },
  "luminance": 0.04888
}

Semantic roles & 50–950 ramp

primary

#40337B

secondary

#9BA862

accent

#D157BB

background

#F7F6FA

surface

#EEEBF3

border

#C9C6CD

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #40337B

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

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