#3147B4#3147B4

#3147B4 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.0% C 0.174 H 269.3°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3147B4
RGB	rgb(49, 71, 180)
HSL	hsl(230, 57%, 45%)
HSV	hsv(230, 73%, 71%)
CMYK	cmyk(72.8%, 60.6%, 0%, 29.4%)
CIE-LAB	lab(34.91, 29.68, -60.29)
CIE-LCH	lch(34.91, 67.20, 296.21°)
OKLab	oklab(45.04% -0.002 -0.174)
OKLCH	oklch(45.04% 0.174 269.3)
XYZ	xyz(11.7552, 8.4535, 44.1833)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147B4 #B49E31

analogous

#3188B4 #3147B4 #5D31B4

triadic

#3147B4 #B43147 #47B431

tetradic

#3147B4 #B43188 #B49E31 #31B45D

square

#3147B4 #B43188 #B49E31 #31B45D

split-complementary

#3147B4 #B45D31 #88B431

monochromatic

#172154 #243484 #3147B4 #5267D0 #8292DD

Accessibility & contrast

On white

7.80

#3147B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3147B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147B4

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147B4	#FFFFFF	#000000	##FFFFFF
##3147B4	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B8

Deuteranopia (green-blind)

#004CB2

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3147b4;
/* rgb */ color: rgb(49, 71, 180);
/* oklch */ color: oklch(45.0% 0.174 269.3);

Tailwind

colors: {
  custom: {
    50: '#7b7acb',
    500: '#3147b4',
    950: '#000000',
  },
}

SCSS

$custom: #3147b4;
$custom-light: #7b7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3147b4",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 180
  },
  "hsl": {
    "h": 229.924,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45037,
    "c": 0.17405,
    "h": 269.3
  },
  "luminance": 0.08455
}

Semantic roles & 50–950 ramp

primary

#3147B4

secondary

#C6BA7B

accent

#C747E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3147B4

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

Preview Lab → · Contrast checker → · Palette generator →