#3047A3#3047A3

#3047A3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.151 H 268.7°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#3047A3
RGB	rgb(48, 71, 163)
HSL	hsl(228, 55%, 41%)
HSV	hsv(228, 71%, 64%)
CMYK	cmyk(70.6%, 56.4%, 0%, 36.1%)
CIE-LAB	lab(33.52, 23.24, -52.43)
CIE-LCH	lch(33.52, 57.35, 293.91°)
OKLab	oklab(43.56% -0.0034 -0.1509)
OKLCH	oklch(43.56% 0.151 268.7)
XYZ	xyz(10.0807, 7.7782, 35.6133)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047A3 #A38C30

analogous

#3081A3 #3047A3 #5330A3

triadic

#3047A3 #A33047 #47A330

tetradic

#3047A3 #A33081 #A38C30 #30A353

square

#3047A3 #A33081 #A38C30 #30A353

split-complementary

#3047A3 #A35330 #81A330

monochromatic

#141E44 #223274 #3047A3 #4761C9 #778AD7

Accessibility & contrast

On white

8.22

#3047A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3047A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047A3

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047A3	#FFFFFF	#000000	##FFFFFF
##3047A3	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#004AA1

Tritanopia (blue-blind)

#005D6E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3047a3;
/* rgb */ color: rgb(48, 71, 163);
/* oklch */ color: oklch(43.6% 0.151 268.7);

Tailwind

colors: {
  custom: {
    50: '#7779bf',
    500: '#3047a3',
    950: '#000000',
  },
}

SCSS

$custom: #3047a3;
$custom-light: #7779bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3047a3",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 163
  },
  "hsl": {
    "h": 228,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.43562,
    "c": 0.15099,
    "h": 268.7
  },
  "luminance": 0.07779
}

Semantic roles & 50–950 ramp

primary

#3047A3

secondary

#BFAF70

accent

#C04ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3047A3

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

Preview Lab → · Contrast checker → · Palette generator →