#3147A8#3147A8

#3147A8 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.0% C 0.158 H 269.2°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3147A8
RGB	rgb(49, 71, 168)
HSL	hsl(229, 55%, 43%)
HSV	hsv(229, 71%, 66%)
CMYK	cmyk(70.8%, 57.7%, 0%, 34.1%)
CIE-LAB	lab(33.95, 25.25, -54.71)
CIE-LCH	lch(33.95, 60.26, 294.77°)
OKLab	oklab(44.02% -0.0022 -0.1577)
OKLCH	oklch(44.02% 0.158 269.2)
XYZ	xyz(10.5853, 7.9855, 38.0217)
Luminance	0.0799 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3147A8 #A89231

analogous

#3182A8 #3147A8 #5731A8

triadic

#3147A8 #A83147 #47A831

tetradic

#3147A8 #A83182 #A89231 #31A857

square

#3147A8 #A83182 #A89231 #31A857

split-complementary

#3147A8 #A85731 #82A831

monochromatic

#151F49 #233379 #3147A8 #4C63CB #7B8CD8

Accessibility & contrast

On white

8.09

#3147A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3147A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3147A8

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3147A8	#FFFFFF	#000000	##FFFFFF
##3147A8	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#004BA6

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3147a8;
/* rgb */ color: rgb(49, 71, 168);
/* oklch */ color: oklch(44.0% 0.158 269.2);

Tailwind

colors: {
  custom: {
    50: '#7979c3',
    500: '#3147a8',
    950: '#000000',
  },
}

SCSS

$custom: #3147a8;
$custom-light: #7979c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3147a8",
  "rgb": {
    "r": 49,
    "g": 71,
    "b": 168
  },
  "hsl": {
    "h": 228.908,
    "s": 54.839,
    "l": 42.549
  },
  "oklch": {
    "l": 0.44024,
    "c": 0.15767,
    "h": 269.2
  },
  "luminance": 0.07987
}

Semantic roles & 50–950 ramp

primary

#3147A8

secondary

#C1B374

accent

#C34ADE

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3147A8

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

Preview Lab → · Contrast checker → · Palette generator →