#433FBB#433FBB

#433FBB is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.3% C 0.188 H 277.2°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#433FBB
RGB	rgb(67, 63, 187)
HSL	hsl(242, 50%, 49%)
HSV	hsv(242, 66%, 73%)
CMYK	cmyk(64.2%, 66.3%, 0%, 26.7%)
CIE-LAB	lab(34.67, 39.59, -64.77)
CIE-LCH	lch(34.67, 75.91, 301.44°)
OKLab	oklab(45.33% 0.0237 -0.1868)
OKLCH	oklch(45.33% 0.188 277.2)
XYZ	xyz(13.0590, 8.3351, 47.9247)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.98

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#433FBB #B7BB3F

analogous

#3F79BB #433FBB #813FBB

triadic

#433FBB #BB433F #3FBB43

tetradic

#433FBB #BB3F79 #B7BB3F #3FBB81

square

#433FBB #BB3F79 #B7BB3F #3FBB81

split-complementary

#433FBB #BB813F #79BB3F

monochromatic

#22205F #33308D #433FBB #6D6ACD #9A98DC

Accessibility & contrast

On white

7.87

#433FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#433FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #433FBB

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##433FBB	#FFFFFF	#000000	##FFFFFF
##433FBB	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BF

Deuteranopia (green-blind)

#004CB9

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #433fbb;
/* rgb */ color: rgb(67, 63, 187);
/* oklch */ color: oklch(45.3% 0.188 277.2);

Tailwind

colors: {
  custom: {
    50: '#8575d0',
    500: '#433fbb',
    950: '#000000',
  },
}

SCSS

$custom: #433fbb;
$custom-light: #8575d0;
$custom-dark: #000000;

JSON

{
  "hex": "#433fbb",
  "rgb": {
    "r": 67,
    "g": 63,
    "b": 187
  },
  "hsl": {
    "h": 241.935,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45333,
    "c": 0.18828,
    "h": 277.2
  },
  "luminance": 0.08336
}

Semantic roles & 50–950 ramp

primary

#433FBB

secondary

#C6C88E

accent

#D94FD5

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #433FBB

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

Preview Lab → · Contrast checker → · Palette generator →