#3647B4#3647B4

#3647B4 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.3% C 0.173 H 271.0°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3647B4
RGB	rgb(54, 71, 180)
HSL	hsl(232, 54%, 46%)
HSV	hsv(232, 70%, 71%)
CMYK	cmyk(70%, 60.6%, 0%, 29.4%)
CIE-LAB	lab(35.17, 30.33, -59.85)
CIE-LCH	lch(35.17, 67.10, 296.87°)
OKLab	oklab(45.3% 0.003 -0.1726)
OKLCH	oklch(45.3% 0.173 271)
XYZ	xyz(12.0100, 8.5849, 44.1953)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3647B4 #B4A336

analogous

#3686B4 #3647B4 #6436B4

triadic

#3647B4 #B43647 #47B436

tetradic

#3647B4 #B43686 #B4A336 #36B464

square

#3647B4 #B43686 #B4A336 #36B464

split-complementary

#3647B4 #B46436 #86B436

monochromatic

#1A2256 #283485 #3647B4 #5A69CD #8994DC

Accessibility & contrast

On white

7.73

#3647B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3647B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3647B4

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3647B4	#FFFFFF	#000000	##FFFFFF
##3647B4	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B8

Deuteranopia (green-blind)

#004DB2

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3647b4;
/* rgb */ color: rgb(54, 71, 180);
/* oklch */ color: oklch(45.3% 0.173 271.0);

Tailwind

colors: {
  custom: {
    50: '#7d7acb',
    500: '#3647b4',
    950: '#000000',
  },
}

SCSS

$custom: #3647b4;
$custom-light: #7d7acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3647b4",
  "rgb": {
    "r": 54,
    "g": 71,
    "b": 180
  },
  "hsl": {
    "h": 231.905,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.45302,
    "c": 0.17267,
    "h": 271
  },
  "luminance": 0.08586
}

Semantic roles & 50–950 ramp

primary

#3647B4

secondary

#C6BC80

accent

#C94BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3647B4

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

Preview Lab → · Contrast checker → · Palette generator →