#443FBB#443FBB

#443FBB is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.4% C 0.188 H 277.6°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#443FBB
RGB	rgb(68, 63, 187)
HSL	hsl(242, 50%, 49%)
HSV	hsv(242, 66%, 73%)
CMYK	cmyk(63.6%, 66.3%, 0%, 26.7%)
CIE-LAB	lab(34.74, 39.74, -64.65)
CIE-LCH	lch(34.74, 75.89, 301.58°)
OKLab	oklab(45.4% 0.0249 -0.1864)
OKLCH	oklch(45.4% 0.188 277.6)
XYZ	xyz(13.1281, 8.3708, 47.9280)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.87

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#443FBB #B6BB3F

analogous

#3F78BB #443FBB #823FBB

triadic

#443FBB #BB443F #3FBB44

tetradic

#443FBB #BB3F78 #B6BB3F #3FBB82

square

#443FBB #BB3F78 #B6BB3F #3FBB82

split-complementary

#443FBB #BB823F #78BB3F

monochromatic

#23205F #33308D #443FBB #6E6ACD #9B98DC

Accessibility & contrast

On white

7.85

#443FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#443FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #443FBB

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##443FBB	#FFFFFF	#000000	##FFFFFF
##443FBB	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	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: #443fbb;
/* rgb */ color: rgb(68, 63, 187);
/* oklch */ color: oklch(45.4% 0.188 277.6);

Tailwind

colors: {
  custom: {
    50: '#8675d0',
    500: '#443fbb',
    950: '#000000',
  },
}

SCSS

$custom: #443fbb;
$custom-light: #8675d0;
$custom-dark: #000000;

JSON

{
  "hex": "#443fbb",
  "rgb": {
    "r": 68,
    "g": 63,
    "b": 187
  },
  "hsl": {
    "h": 242.419,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45404,
    "c": 0.18807,
    "h": 277.6
  },
  "luminance": 0.08372
}

Semantic roles & 50–950 ramp

primary

#443FBB

secondary

#C6C88E

accent

#D94FD4

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #443FBB

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

Preview Lab → · Contrast checker → · Palette generator →