#3147B3#3147B3

#3147B3 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 45.0% C 0.173 H 269.3°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#3147B3
RGB	rgb(49, 71, 179)
HSL	hsl(230, 57%, 45%)
HSV	hsv(230, 73%, 70%)
CMYK	cmyk(72.6%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.83, 29.31, -59.83)
CIE-LCH	lch(34.83, 66.63, 296.10°)
OKLab	oklab(44.95% -0.002 -0.1727)
OKLCH	oklch(44.95% 0.173 269.3)
XYZ	xyz(11.6537, 8.4129, 43.6488)
Luminance	0.0841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147B3 #B39D31

analogous

#3188B3 #3147B3 #5C31B3

triadic

#3147B3 #B33147 #47B331

tetradic

#3147B3 #B33188 #B39D31 #31B35C

square

#3147B3 #B33188 #B39D31 #31B35C

split-complementary

#3147B3 #B35C31 #88B331

monochromatic

#172153 #243483 #3147B3 #5267D0 #8291DD

Accessibility & contrast

On white

7.83

#3147B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3147B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147B3

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147B3	#FFFFFF	#000000	##FFFFFF
##3147B3	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B7

Deuteranopia (green-blind)

#004CB1

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3147b3;
/* rgb */ color: rgb(49, 71, 179);
/* oklch */ color: oklch(45.0% 0.173 269.3);

Tailwind

colors: {
  custom: {
    50: '#7b7acb',
    500: '#3147b3',
    950: '#000000',
  },
}

SCSS

$custom: #3147b3;
$custom-light: #7b7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3147b3",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 229.846,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.44951,
    "c": 0.17271,
    "h": 269.3
  },
  "luminance": 0.08414
}

Semantic roles & 50–950 ramp

primary

#3147B3

secondary

#C6B97A

accent

#C648E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3147B3

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

Preview Lab → · Contrast checker → · Palette generator →