#3147B1#3147B1

#3147B1 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.170 H 269.3°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#3147B1
RGB	rgb(49, 71, 177)
HSL	hsl(230, 57%, 44%)
HSV	hsv(230, 72%, 69%)
CMYK	cmyk(72.3%, 59.9%, 0%, 30.6%)
CIE-LAB	lab(34.67, 28.57, -58.91)
CIE-LCH	lch(34.67, 65.48, 295.87°)
OKLab	oklab(44.78% -0.002 -0.17)
OKLCH	oklch(44.78% 0.17 269.3)
XYZ	xyz(11.4529, 8.3326, 42.5912)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147B1 #B19B31

analogous

#3187B1 #3147B1 #5B31B1

triadic

#3147B1 #B13147 #47B131

tetradic

#3147B1 #B13187 #B19B31 #31B15B

square

#3147B1 #B13187 #B19B31 #31B15B

split-complementary

#3147B1 #B15B31 #87B131

monochromatic

#162151 #243481 #3147B1 #5166CF #8090DC

Accessibility & contrast

On white

7.87

#3147B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3147B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147B1

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147B1	#FFFFFF	#000000	##FFFFFF
##3147B1	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B5

Deuteranopia (green-blind)

#004CAF

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3147b1;
/* rgb */ color: rgb(49, 71, 177);
/* oklch */ color: oklch(44.8% 0.170 269.3);

Tailwind

colors: {
  custom: {
    50: '#7b7ac9',
    500: '#3147b1',
    950: '#000000',
  },
}

SCSS

$custom: #3147b1;
$custom-light: #7b7ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3147b1",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 177
  },
  "hsl": {
    "h": 229.688,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.44779,
    "c": 0.17,
    "h": 269.3
  },
  "luminance": 0.08334
}

Semantic roles & 50–950 ramp

primary

#3147B1

secondary

#C5B879

accent

#C648E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3147B1

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

Preview Lab → · Contrast checker → · Palette generator →