#3047B3#3047B3

#3047B3 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.173 H 269.0°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#3047B3
RGB	rgb(48, 71, 179)
HSL	hsl(229, 58%, 45%)
HSV	hsv(229, 73%, 70%)
CMYK	cmyk(73.2%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.78, 29.18, -59.92)
CIE-LCH	lch(34.78, 66.65, 295.97°)
OKLab	oklab(44.9% -0.003 -0.173)
OKLCH	oklch(44.9% 0.173 269)
XYZ	xyz(11.6060, 8.3883, 43.6465)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047B3 #B39C30

analogous

#3088B3 #3047B3 #5B30B3

triadic

#3047B3 #B33047 #47B330

tetradic

#3047B3 #B33088 #B39C30 #30B35B

square

#3047B3 #B33088 #B39C30 #30B35B

split-complementary

#3047B3 #B35B30 #88B330

monochromatic

#162152 #233483 #3047B3 #5067D0 #8091DD

Accessibility & contrast

On white

7.84

#3047B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3047B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047B3

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047B3	#FFFFFF	#000000	##FFFFFF
##3047B3	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B7

Deuteranopia (green-blind)

#004CB1

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3047b3;
/* rgb */ color: rgb(48, 71, 179);
/* oklch */ color: oklch(44.9% 0.173 269.0);

Tailwind

colors: {
  custom: {
    50: '#7b7acb',
    500: '#3047b3',
    950: '#000000',
  },
}

SCSS

$custom: #3047b3;
$custom-light: #7b7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3047b3",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 229.466,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.449,
    "c": 0.17299,
    "h": 269
  },
  "luminance": 0.0839
}

Semantic roles & 50–950 ramp

primary

#3047B3

secondary

#C6B879

accent

#C647E1

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3047B3

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

Preview Lab → · Contrast checker → · Palette generator →