#3147B7#3147B7

#3147B7 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.3% C 0.178 H 269.3°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3147B7
RGB	rgb(49, 71, 183)
HSL	hsl(230, 58%, 45%)
HSV	hsv(230, 73%, 72%)
CMYK	cmyk(73.2%, 61.2%, 0%, 28.2%)
CIE-LAB	lab(35.16, 30.78, -61.66)
CIE-LCH	lch(35.16, 68.92, 296.52°)
OKLab	oklab(45.3% -0.002 -0.1781)
OKLCH	oklch(45.3% 0.178 269.3)
XYZ	xyz(12.0642, 8.5771, 45.8103)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147B7 #B7A131

analogous

#318AB7 #3147B7 #5E31B7

triadic

#3147B7 #B73147 #47B731

tetradic

#3147B7 #B7318A #B7A131 #31B75E

square

#3147B7 #B7318A #B7A131 #31B75E

split-complementary

#3147B7 #B75E31 #8AB731

monochromatic

#172256 #243487 #3147B7 #5469D1 #8493DE

Accessibility & contrast

On white

7.73

#3147B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3147B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147B7

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147B7	#FFFFFF	#000000	##FFFFFF
##3147B7	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#004DB5

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3147b7;
/* rgb */ color: rgb(49, 71, 183);
/* oklch */ color: oklch(45.3% 0.178 269.3);

Tailwind

colors: {
  custom: {
    50: '#7c7ace',
    500: '#3147b7',
    950: '#000000',
  },
}

SCSS

$custom: #3147b7;
$custom-light: #7c7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3147b7",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 183
  },
  "hsl": {
    "h": 230.149,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45297,
    "c": 0.17808,
    "h": 269.3
  },
  "luminance": 0.08578
}

Semantic roles & 50–950 ramp

primary

#3147B7

secondary

#C8BB7C

accent

#C847E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3147B7

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

Preview Lab → · Contrast checker → · Palette generator →