#3473DD#3473DD

#3473DD is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.2% C 0.175 H 260.2°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3473DD
RGB	rgb(52, 115, 221)
HSL	hsl(218, 71%, 54%)
HSV	hsv(218, 76%, 87%)
CMYK	cmyk(76.5%, 48%, 0%, 13.3%)
CIE-LAB	lab(49.75, 16.90, -59.93)
CIE-LCH	lch(49.75, 62.27, 285.75°)
OKLab	oklab(57.23% -0.0297 -0.1722)
OKLCH	oklch(57.23% 0.175 260.2)
XYZ	xyz(20.5933, 18.2096, 70.8221)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3473DD #DD9E34

analogous

#34C7DD #3473DD #4934DD

triadic

#3473DD #DD3473 #73DD34

tetradic

#3473DD #DD34C7 #DD9E34 #34DD49

square

#3473DD #DD34C7 #DD9E34 #34DD49

split-complementary

#3473DD #DD4934 #C7DD34

monochromatic

#163E81 #1E57B5 #3473DD #6897E6 #9DBBEF

Accessibility & contrast

On white

4.52

#3473DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3473DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3473DD

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3473DD	#FFFFFF	#000000	##000000
##3473DD	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377FE1

Deuteranopia (green-blind)

#006FDB

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3473dd;
/* rgb */ color: rgb(52, 115, 221);
/* oklch */ color: oklch(57.2% 0.175 260.2);

Tailwind

colors: {
  custom: {
    50: '#839ae8',
    500: '#3473dd',
    950: '#000000',
  },
}

SCSS

$custom: #3473dd;
$custom-light: #839ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#3473dd",
  "rgb": {
    "r": 52,
    "g": 115,
    "b": 221
  },
  "hsl": {
    "h": 217.633,
    "s": 71.308,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57225,
    "c": 0.17475,
    "h": 260.2
  },
  "luminance": 0.18212
}

Semantic roles & 50–950 ramp

primary

#3473DD

secondary

#DBC092

accent

#AB3AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3473DD

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

Preview Lab → · Contrast checker → · Palette generator →