#433DB1#433DB1

#433DB1 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.1% C 0.178 H 278.5°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#433DB1
RGB	rgb(67, 61, 177)
HSL	hsl(243, 49%, 47%)
HSV	hsv(243, 66%, 69%)
CMYK	cmyk(62.1%, 65.5%, 0%, 30.6%)
CIE-LAB	lab(33.36, 37.50, -61.00)
CIE-LCH	lch(33.36, 71.60, 301.58°)
OKLab	oklab(44.12% 0.0263 -0.1757)
OKLCH	oklch(44.12% 0.178 278.5)
XYZ	xyz(11.9168, 7.7042, 42.4455)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.15

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#433DB1 #ABB13D

analogous

#3D71B1 #433DB1 #7D3DB1

triadic

#433DB1 #B1433D #3DB143

tetradic

#433DB1 #B13D71 #ABB13D #3DB17D

square

#433DB1 #B13D71 #ABB13D #3DB17D

split-complementary

#433DB1 #B17D3D #71B13D

monochromatic

#211E56 #322D83 #433DB1 #6862C9 #9490D9

Accessibility & contrast

On white

8.26

#433DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#433DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #433DB1

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##433DB1	#FFFFFF	#000000	##FFFFFF
##433DB1	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B5

Deuteranopia (green-blind)

#004AAF

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #433db1;
/* rgb */ color: rgb(67, 61, 177);
/* oklch */ color: oklch(44.1% 0.178 278.5);

Tailwind

colors: {
  custom: {
    50: '#8373c9',
    500: '#433db1',
    950: '#000000',
  },
}

SCSS

$custom: #433db1;
$custom-light: #8373c9;
$custom-dark: #000000;

JSON

{
  "hex": "#433db1",
  "rgb": {
    "r": 67,
    "g": 61,
    "b": 177
  },
  "hsl": {
    "h": 243.103,
    "s": 48.739,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44115,
    "c": 0.17769,
    "h": 278.5
  },
  "luminance": 0.07705
}

Semantic roles & 50–950 ramp

primary

#433DB1

secondary

#C0C486

accent

#D850D1

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #433DB1

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

Preview Lab → · Contrast checker → · Palette generator →