#4473BB#4473BB

#4473BB is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.7% C 0.124 H 258.7°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4473BB
RGB	rgb(68, 115, 187)
HSL	hsl(216, 47%, 50%)
HSV	hsv(216, 64%, 73%)
CMYK	cmyk(63.6%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(48.36, 6.95, -42.70)
CIE-LCH	lch(48.36, 43.26, 279.24°)
OKLab	oklab(55.67% -0.0243 -0.1213)
OKLCH	oklch(55.67% 0.124 258.7)
XYZ	xyz(17.4811, 17.0766, 49.3789)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4473BB #BB8C44

analogous

#44AEBB #4473BB #5144BB

triadic

#4473BB #BB4473 #73BB44

tetradic

#4473BB #BB44AE #BB8C44 #44BB51

square

#4473BB #BB44AE #BB8C44 #44BB51

split-complementary

#4473BB #BB5144 #AEBB44

monochromatic

#233C61 #34578E #4473BB #7195CB #9EB6DC

Accessibility & contrast

On white

4.76

#4473BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4473BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4473BB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4473BB	#FFFFFF	#000000	##FFFFFF
##4473BB	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BE

Deuteranopia (green-blind)

#436EBA

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4473bb;
/* rgb */ color: rgb(68, 115, 187);
/* oklch */ color: oklch(55.7% 0.124 258.7);

Tailwind

colors: {
  custom: {
    50: '#839ad0',
    500: '#4473bb',
    950: '#000000',
  },
}

SCSS

$custom: #4473bb;
$custom-light: #839ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4473bb",
  "rgb": {
    "r": 68,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 216.303,
    "s": 46.667,
    "l": 50
  },
  "oklch": {
    "l": 0.55672,
    "c": 0.12375,
    "h": 258.7
  },
  "luminance": 0.17078
}

Semantic roles & 50–950 ramp

primary

#4473BB

secondary

#C8B393

accent

#A251D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4473BB

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

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