#443FB3#443FB3

#443FB3 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.7% C 0.178 H 278.3°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#443FB3
RGB	rgb(68, 63, 179)
HSL	hsl(243, 48%, 47%)
HSV	hsv(243, 65%, 70%)
CMYK	cmyk(62%, 64.8%, 0%, 29.8%)
CIE-LAB	lab(34.06, 37.09, -61.04)
CIE-LCH	lch(34.06, 71.42, 301.29°)
OKLab	oklab(44.7% 0.0257 -0.1758)
OKLCH	oklch(44.7% 0.178 278.3)
XYZ	xyz(12.2955, 8.0377, 43.5426)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.76

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#443FB3 #AEB33F

analogous

#3F74B3 #443FB3 #7E3FB3

triadic

#443FB3 #B3443F #3FB344

tetradic

#443FB3 #B33F74 #AEB33F #3FB37E

square

#443FB3 #B33F74 #AEB33F #3FB37E

split-complementary

#443FB3 #B37E3F #74B33F

monochromatic

#221F58 #332F86 #443FB3 #6A66C9 #9693D9

Accessibility & contrast

On white

8.05

#443FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#443FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #443FB3

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##443FB3	#FFFFFF	#000000	##FFFFFF
##443FB3	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#004BB1

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #443fb3;
/* rgb */ color: rgb(68, 63, 179);
/* oklch */ color: oklch(44.7% 0.178 278.3);

Tailwind

colors: {
  custom: {
    50: '#8475cb',
    500: '#443fb3',
    950: '#000000',
  },
}

SCSS

$custom: #443fb3;
$custom-light: #8475cb;
$custom-dark: #000000;

JSON

{
  "hex": "#443fb3",
  "rgb": {
    "r": 68,
    "g": 63,
    "b": 179
  },
  "hsl": {
    "h": 242.586,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44697,
    "c": 0.17768,
    "h": 278.3
  },
  "luminance": 0.08039
}

Semantic roles & 50–950 ramp

primary

#443FB3

secondary

#C2C489

accent

#D850D2

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #443FB3

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

Preview Lab → · Contrast checker → · Palette generator →