#3047A4#3047A4

#3047A4 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.152 H 268.7°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#3047A4
RGB	rgb(48, 71, 164)
HSL	hsl(228, 55%, 42%)
HSV	hsv(228, 71%, 64%)
CMYK	cmyk(70.7%, 56.7%, 0%, 35.7%)
CIE-LAB	lab(33.59, 23.62, -52.90)
CIE-LCH	lch(33.59, 57.93, 294.06°)
OKLab	oklab(43.64% -0.0033 -0.1524)
OKLCH	oklch(43.64% 0.152 268.7)
XYZ	xyz(10.1707, 7.8142, 36.0870)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047A4 #A48D30

analogous

#3081A4 #3047A4 #5330A4

triadic

#3047A4 #A43047 #47A430

tetradic

#3047A4 #A43081 #A48D30 #30A453

square

#3047A4 #A43081 #A48D30 #30A453

split-complementary

#3047A4 #A45330 #81A430

monochromatic

#141E45 #223375 #3047A4 #4862C9 #778AD7

Accessibility & contrast

On white

8.19

#3047A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3047A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047A4

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047A4	#FFFFFF	#000000	##FFFFFF
##3047A4	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A7

Deuteranopia (green-blind)

#004AA2

Tritanopia (blue-blind)

#005E6E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3047a4;
/* rgb */ color: rgb(48, 71, 164);
/* oklch */ color: oklch(43.6% 0.152 268.7);

Tailwind

colors: {
  custom: {
    50: '#7779c0',
    500: '#3047a4',
    950: '#000000',
  },
}

SCSS

$custom: #3047a4;
$custom-light: #7779c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3047a4",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 164
  },
  "hsl": {
    "h": 228.103,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.43643,
    "c": 0.15239,
    "h": 268.7
  },
  "luminance": 0.07815
}

Semantic roles & 50–950 ramp

primary

#3047A4

secondary

#BFB070

accent

#C14ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3047A4

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

Preview Lab → · Contrast checker → · Palette generator →