#433F99#433F99

#433F99 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.143 H 280.4°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#433F99
RGB	rgb(67, 63, 153)
HSL	hsl(243, 42%, 42%)
HSV	hsv(243, 59%, 60%)
CMYK	cmyk(56.2%, 58.8%, 0%, 40%)
CIE-LAB	lab(31.91, 28.25, -48.92)
CIE-LCH	lch(31.91, 56.49, 300.00°)
OKLab	oklab(42.46% 0.0258 -0.1402)
OKLCH	oklch(42.46% 0.143 280.4)
XYZ	xyz(9.8402, 7.0476, 30.9726)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#433F99 #95993F

analogous

#3F6899 #433F99 #703F99

triadic

#433F99 #99433F #3F9943

tetradic

#433F99 #993F68 #95993F #3F9970

square

#433F99 #993F68 #95993F #3F9970

split-complementary

#433F99 #99703F #68993F

monochromatic

#1D1B42 #302D6E #433F99 #5E5ABB #8985CD

Accessibility & contrast

On white

8.72

#433F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#433F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #433F99

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##433F99	#FFFFFF	#000000	##FFFFFF
##433F99	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9C

Deuteranopia (green-blind)

#004897

Tritanopia (blue-blind)

#195465

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #433f99;
/* rgb */ color: rgb(67, 63, 153);
/* oklch */ color: oklch(42.5% 0.143 280.4);

Tailwind

colors: {
  custom: {
    50: '#7f74b8',
    500: '#433f99',
    950: '#000000',
  },
}

SCSS

$custom: #433f99;
$custom-light: #7f74b8;
$custom-dark: #000000;

JSON

{
  "hex": "#433f99",
  "rgb": {
    "r": 67,
    "g": 63,
    "b": 153
  },
  "hsl": {
    "h": 242.667,
    "s": 41.667,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42455,
    "c": 0.14258,
    "h": 280.4
  },
  "luminance": 0.07048
}

Semantic roles & 50–950 ramp

primary

#433F99

secondary

#B5B77C

accent

#D156CC

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0811

muted

#7C7B80

Preview Lab

Preview with #433F99

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

Preview Lab → · Contrast checker → · Palette generator →