#433CBB#433CBB

#433CBB is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.9% C 0.192 H 277.8°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#433CBB
RGB	rgb(67, 60, 187)
HSL	hsl(243, 51%, 48%)
HSV	hsv(243, 68%, 73%)
CMYK	cmyk(64.2%, 67.9%, 0%, 26.7%)
CIE-LAB	lab(34.01, 41.39, -65.86)
CIE-LCH	lch(34.01, 77.78, 302.15°)
OKLab	oklab(44.85% 0.026 -0.19)
OKLCH	oklch(44.85% 0.192 277.8)
XYZ	xyz(12.8973, 8.0118, 47.8708)
Luminance	0.0801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.32

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#433CBB #B4BB3C

analogous

#3C74BB #433CBB #823CBB

triadic

#433CBB #BB433C #3CBB43

tetradic

#433CBB #BB3C74 #B4BB3C #3CBB82

square

#433CBB #BB3C74 #B4BB3C #3CBB82

split-complementary

#433CBB #BB823C #74BB3C

monochromatic

#221E5E #322D8D #433CBB #6C66CE #9995DD

Accessibility & contrast

On white

8.07

#433CBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#433CBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #433CBB

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##433CBB	#FFFFFF	#000000	##FFFFFF
##433CBB	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BF

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #433cbb;
/* rgb */ color: rgb(67, 60, 187);
/* oklch */ color: oklch(44.9% 0.192 277.8);

Tailwind

colors: {
  custom: {
    50: '#8573d1',
    500: '#433cbb',
    950: '#000000',
  },
}

SCSS

$custom: #433cbb;
$custom-light: #8573d1;
$custom-dark: #000000;

JSON

{
  "hex": "#433cbb",
  "rgb": {
    "r": 67,
    "g": 60,
    "b": 187
  },
  "hsl": {
    "h": 243.307,
    "s": 51.417,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44853,
    "c": 0.19174,
    "h": 277.8
  },
  "luminance": 0.08013
}

Semantic roles & 50–950 ramp

primary

#433CBB

secondary

#C5C88B

accent

#DB4DD3

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #433CBB

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

Preview Lab → · Contrast checker → · Palette generator →