#3047A5#3047A5

#3047A5 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.7% C 0.154 H 268.8°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#3047A5
RGB	rgb(48, 71, 165)
HSL	hsl(228, 55%, 42%)
HSV	hsv(228, 71%, 65%)
CMYK	cmyk(70.9%, 57%, 0%, 35.3%)
CIE-LAB	lab(33.67, 23.99, -53.38)
CIE-LCH	lch(33.67, 58.52, 294.20°)
OKLab	oklab(43.73% -0.0033 -0.1537)
OKLCH	oklch(43.73% 0.154 268.8)
XYZ	xyz(10.2614, 7.8504, 36.5645)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3047A5 #A58E30

analogous

#3082A5 #3047A5 #5430A5

triadic

#3047A5 #A53047 #47A530

tetradic

#3047A5 #A53082 #A58E30 #30A554

square

#3047A5 #A53082 #A58E30 #30A554

split-complementary

#3047A5 #A55430 #82A530

monochromatic

#141E46 #223376 #3047A5 #4862CA #788BD8

Accessibility & contrast

On white

8.17

#3047A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3047A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3047A5

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3047A5	#FFFFFF	#000000	##FFFFFF
##3047A5	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055A8

Deuteranopia (green-blind)

#004AA3

Tritanopia (blue-blind)

#005E6F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3047a5;
/* rgb */ color: rgb(48, 71, 165);
/* oklch */ color: oklch(43.7% 0.154 268.8);

Tailwind

colors: {
  custom: {
    50: '#7879c0',
    500: '#3047a5',
    950: '#000000',
  },
}

SCSS

$custom: #3047a5;
$custom-light: #7879c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3047a5",
  "rgb": {
    "r": 48,
    "g": 71,
    "b": 165
  },
  "hsl": {
    "h": 228.205,
    "s": 54.93,
    "l": 41.765
  },
  "oklch": {
    "l": 0.43725,
    "c": 0.15379,
    "h": 268.8
  },
  "luminance": 0.07851
}

Semantic roles & 50–950 ramp

primary

#3047A5

secondary

#C0B071

accent

#C14ADE

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3047A5

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

Preview Lab → · Contrast checker → · Palette generator →