#3147A5#3147A5

#3147A5 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.153 H 269.1°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#3147A5
RGB	rgb(49, 71, 165)
HSL	hsl(229, 54%, 42%)
HSV	hsv(229, 70%, 65%)
CMYK	cmyk(70.3%, 57%, 0%, 35.3%)
CIE-LAB	lab(33.72, 24.13, -53.29)
CIE-LCH	lch(33.72, 58.50, 294.36°)
OKLab	oklab(43.78% -0.0023 -0.1535)
OKLCH	oklch(43.78% 0.154 269.1)
XYZ	xyz(10.3091, 7.8750, 36.5668)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147A5 #A58F31

analogous

#3181A5 #3147A5 #5531A5

triadic

#3147A5 #A53147 #47A531

tetradic

#3147A5 #A53181 #A58F31 #31A555

square

#3147A5 #A53181 #A58F31 #31A555

split-complementary

#3147A5 #A55531 #81A531

monochromatic

#151E47 #233376 #3147A5 #4A62C9 #798BD7

Accessibility & contrast

On white

8.15

#3147A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3147A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147A5

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147A5	#FFFFFF	#000000	##FFFFFF
##3147A5	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#004AA3

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3147a5;
/* rgb */ color: rgb(49, 71, 165);
/* oklch */ color: oklch(43.8% 0.153 269.1);

Tailwind

colors: {
  custom: {
    50: '#7879c0',
    500: '#3147a5',
    950: '#000000',
  },
}

SCSS

$custom: #3147a5;
$custom-light: #7879c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3147a5",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 165
  },
  "hsl": {
    "h": 228.621,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.43778,
    "c": 0.1535,
    "h": 269.1
  },
  "luminance": 0.07876
}

Semantic roles & 50–950 ramp

primary

#3147A5

secondary

#C0B172

accent

#C24ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3147A5

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

Preview Lab → · Contrast checker → · Palette generator →