#3147B5#3147B5

#3147B5 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.1% C 0.175 H 269.3°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3147B5
RGB	rgb(49, 71, 181)
HSL	hsl(230, 57%, 45%)
HSV	hsv(230, 73%, 71%)
CMYK	cmyk(72.9%, 60.8%, 0%, 29%)
CIE-LAB	lab(34.99, 30.04, -60.75)
CIE-LCH	lch(34.99, 67.77, 296.31°)
OKLab	oklab(45.12% -0.002 -0.1754)
OKLCH	oklch(45.12% 0.175 269.3)
XYZ	xyz(11.8575, 8.4944, 44.7218)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147B5 #B59F31

analogous

#3189B5 #3147B5 #5D31B5

triadic

#3147B5 #B53147 #47B531

tetradic

#3147B5 #B53189 #B59F31 #31B55D

square

#3147B5 #B53189 #B59F31 #31B55D

split-complementary

#3147B5 #B55D31 #89B531

monochromatic

#172155 #243485 #3147B5 #5368D0 #8392DD

Accessibility & contrast

On white

7.78

#3147B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3147B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147B5

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147B5	#FFFFFF	#000000	##FFFFFF
##3147B5	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B9

Deuteranopia (green-blind)

#004CB3

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3147b5;
/* rgb */ color: rgb(49, 71, 181);
/* oklch */ color: oklch(45.1% 0.175 269.3);

Tailwind

colors: {
  custom: {
    50: '#7c7acc',
    500: '#3147b5',
    950: '#000000',
  },
}

SCSS

$custom: #3147b5;
$custom-light: #7c7acc;
$custom-dark: #000000;

JSON

{
  "hex": "#3147b5",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 181
  },
  "hsl": {
    "h": 230,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45123,
    "c": 0.1754,
    "h": 269.3
  },
  "luminance": 0.08496
}

Semantic roles & 50–950 ramp

primary

#3147B5

secondary

#C7BA7B

accent

#C747E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3147B5

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

Preview Lab → · Contrast checker → · Palette generator →