#3047AB#3047AB

#3047AB is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.2% C 0.162 H 268.9°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#3047AB
RGB	rgb(48, 71, 171)
HSL	hsl(229, 56%, 43%)
HSV	hsv(229, 72%, 67%)
CMYK	cmyk(71.9%, 58.5%, 0%, 32.9%)
CIE-LAB	lab(34.14, 26.22, -56.21)
CIE-LCH	lch(34.14, 62.02, 295.01°)
OKLab	oklab(44.22% -0.0031 -0.1621)
OKLCH	oklch(44.22% 0.162 268.9)
XYZ	xyz(10.8203, 8.0740, 39.5084)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047AB #AB9430

analogous

#3085AB #3047AB #5630AB

triadic

#3047AB #AB3047 #47AB30

tetradic

#3047AB #AB3085 #AB9430 #30AB56

square

#3047AB #AB3085 #AB9430 #30AB56

split-complementary

#3047AB #AB5630 #85AB30

monochromatic

#151F4B #23337B #3047AB #4C64CD #7B8DDA

Accessibility & contrast

On white

8.03

#3047AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3047AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047AB

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047AB	#FFFFFF	#000000	##FFFFFF
##3047AB	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#004BA9

Tritanopia (blue-blind)

#006072

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3047ab;
/* rgb */ color: rgb(48, 71, 171);
/* oklch */ color: oklch(44.2% 0.162 268.9);

Tailwind

colors: {
  custom: {
    50: '#7979c5',
    500: '#3047ab',
    950: '#000000',
  },
}

SCSS

$custom: #3047ab;
$custom-light: #7979c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3047ab",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 171
  },
  "hsl": {
    "h": 228.78,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.44221,
    "c": 0.1621,
    "h": 268.9
  },
  "luminance": 0.08075
}

Semantic roles & 50–950 ramp

primary

#3047AB

secondary

#C3B474

accent

#C348DF

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #3047AB

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

Preview Lab → · Contrast checker → · Palette generator →