#3047B0#3047B0

#3047B0 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.6% C 0.169 H 269.0°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#3047B0
RGB	rgb(48, 71, 176)
HSL	hsl(229, 57%, 44%)
HSV	hsv(229, 73%, 69%)
CMYK	cmyk(72.7%, 59.7%, 0%, 31%)
CIE-LAB	lab(34.54, 28.07, -58.53)
CIE-LCH	lch(34.54, 64.92, 295.62°)
OKLab	oklab(44.64% -0.003 -0.1689)
OKLCH	oklch(44.64% 0.169 269)
XYZ	xyz(11.3059, 8.2683, 42.0660)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047B0 #B09930

analogous

#3087B0 #3047B0 #5930B0

triadic

#3047B0 #B03047 #47B030

tetradic

#3047B0 #B03087 #B09930 #30B059

square

#3047B0 #B03087 #B09930 #30B059

split-complementary

#3047B0 #B05930 #87B030

monochromatic

#162050 #233480 #3047B0 #4E65CF #7E8FDC

Accessibility & contrast

On white

7.91

#3047B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3047B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047B0

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047B0	#FFFFFF	#000000	##FFFFFF
##3047B0	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B3

Deuteranopia (green-blind)

#004BAE

Tritanopia (blue-blind)

#006174

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3047b0;
/* rgb */ color: rgb(48, 71, 176);
/* oklch */ color: oklch(44.6% 0.169 269.0);

Tailwind

colors: {
  custom: {
    50: '#7a7ac8',
    500: '#3047b0',
    950: '#000000',
  },
}

SCSS

$custom: #3047b0;
$custom-light: #7a7ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3047b0",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 176
  },
  "hsl": {
    "h": 229.219,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.44643,
    "c": 0.16893,
    "h": 269
  },
  "luminance": 0.08269
}

Semantic roles & 50–950 ramp

primary

#3047B0

secondary

#C5B777

accent

#C547E0

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3047B0

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

Preview Lab → · Contrast checker → · Palette generator →