#3147AA#3147AA

#3147AA is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.160 H 269.2°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3147AA
RGB	rgb(49, 71, 170)
HSL	hsl(229, 55%, 43%)
HSV	hsv(229, 71%, 67%)
CMYK	cmyk(71.2%, 58.2%, 0%, 33.3%)
CIE-LAB	lab(34.11, 25.99, -55.65)
CIE-LCH	lch(34.11, 61.42, 295.03°)
OKLab	oklab(44.19% -0.0021 -0.1604)
OKLCH	oklch(44.19% 0.16 269.2)
XYZ	xyz(10.7731, 8.0606, 39.0105)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147AA #AA9431

analogous

#3183AA #3147AA #5731AA

triadic

#3147AA #AA3147 #47AA31

tetradic

#3147AA #AA3183 #AA9431 #31AA57

square

#3147AA #AA3183 #AA9431 #31AA57

split-complementary

#3147AA #AA5731 #83AA31

monochromatic

#161F4B #23337A #3147AA #4D64CC #7C8DD9

Accessibility & contrast

On white

8.04

#3147AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3147AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147AA

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147AA	#FFFFFF	#000000	##FFFFFF
##3147AA	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AD

Deuteranopia (green-blind)

#004BA8

Tritanopia (blue-blind)

#005F71

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3147aa;
/* rgb */ color: rgb(49, 71, 170);
/* oklch */ color: oklch(44.2% 0.160 269.2);

Tailwind

colors: {
  custom: {
    50: '#7979c4',
    500: '#3147aa',
    950: '#000000',
  },
}

SCSS

$custom: #3147aa;
$custom-light: #7979c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3147aa",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 170
  },
  "hsl": {
    "h": 229.091,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4419,
    "c": 0.16043,
    "h": 269.2
  },
  "luminance": 0.08062
}

Semantic roles & 50–950 ramp

primary

#3147AA

secondary

#C2B475

accent

#C349DF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3147AA

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

Preview Lab → · Contrast checker → · Palette generator →