#3647B9#3647B9

#3647B9 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.179 H 270.9°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#3647B9
RGB	rgb(54, 71, 185)
HSL	hsl(232, 55%, 47%)
HSV	hsv(232, 71%, 73%)
CMYK	cmyk(70.8%, 61.6%, 0%, 27.5%)
CIE-LAB	lab(35.58, 32.13, -62.14)
CIE-LCH	lch(35.58, 69.95, 297.34°)
OKLab	oklab(45.73% 0.0029 -0.1793)
OKLCH	oklch(45.73% 0.179 270.9)
XYZ	xyz(12.5285, 8.7923, 46.9263)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3647B9 #B9A836

analogous

#3689B9 #3647B9 #6736B9

triadic

#3647B9 #B93647 #47B936

tetradic

#3647B9 #B93689 #B9A836 #36B967

square

#3647B9 #B93689 #B9A836 #36B967

split-complementary

#3647B9 #B96736 #89B936

monochromatic

#1A235A #28358A #3647B9 #5D6CD0 #8C97DD

Accessibility & contrast

On white

7.61

#3647B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3647B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3647B9

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3647B9	#FFFFFF	#000000	##FFFFFF
##3647B9	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABD

Deuteranopia (green-blind)

#004EB7

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3647b9;
/* rgb */ color: rgb(54, 71, 185);
/* oklch */ color: oklch(45.7% 0.179 270.9);

Tailwind

colors: {
  custom: {
    50: '#7e7acf',
    500: '#3647b9',
    950: '#000000',
  },
}

SCSS

$custom: #3647b9;
$custom-light: #7e7acf;
$custom-dark: #000000;

JSON

{
  "hex": "#3647b9",
  "rgb": {
    "r": 54,
    "g": 71,
    "b": 185
  },
  "hsl": {
    "h": 232.214,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.45732,
    "c": 0.17937,
    "h": 270.9
  },
  "luminance": 0.08794
}

Semantic roles & 50–950 ramp

primary

#3647B9

secondary

#C8BF83

accent

#CB4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3647B9

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

Preview Lab → · Contrast checker → · Palette generator →