#43409B#43409B

#43409B is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.144 H 279.9°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#43409B
RGB	rgb(67, 64, 155)
HSL	hsl(242, 42%, 43%)
HSV	hsv(242, 59%, 61%)
CMYK	cmyk(56.8%, 58.7%, 0%, 39.2%)
CIE-LAB	lab(32.32, 28.28, -49.49)
CIE-LCH	lch(32.32, 56.99, 299.74°)
OKLab	oklab(42.8% 0.0247 -0.1419)
OKLCH	oklch(42.8% 0.144 279.9)
XYZ	xyz(10.0627, 7.2260, 31.8685)
Luminance	0.0723 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.02

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43409B #989B40

analogous

#406A9B #43409B #70409B

triadic

#43409B #9B4340 #409B43

tetradic

#43409B #9B406A #989B40 #409B70

square

#43409B #9B406A #989B40 #409B70

split-complementary

#43409B #9B7040 #6A9B40

monochromatic

#1E1C44 #302E70 #43409B #605CBC #8A88CE

Accessibility & contrast

On white

8.59

#43409B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#43409B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43409B

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43409B	#FFFFFF	#000000	##FFFFFF
##43409B	1.00	8.59	2.45	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#165567

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #43409b;
/* rgb */ color: rgb(67, 64, 155);
/* oklch */ color: oklch(42.8% 0.144 279.9);

Tailwind

colors: {
  custom: {
    50: '#7f75b9',
    500: '#43409b',
    950: '#000000',
  },
}

SCSS

$custom: #43409b;
$custom-light: #7f75b9;
$custom-dark: #000000;

JSON

{
  "hex": "#43409b",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 155
  },
  "hsl": {
    "h": 241.978,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42799,
    "c": 0.14402,
    "h": 279.9
  },
  "luminance": 0.07227
}

Semantic roles & 50–950 ramp

primary

#43409B

secondary

#B6B87E

accent

#D156CD

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0811

muted

#7C7B80

Preview Lab

Preview with #43409B

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

Preview Lab → · Contrast checker → · Palette generator →