#3647B2#3647B2

#3647B2 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.1% C 0.170 H 271.0°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3647B2
RGB	rgb(54, 71, 178)
HSL	hsl(232, 53%, 45%)
HSV	hsv(232, 70%, 70%)
CMYK	cmyk(69.7%, 60.1%, 0%, 30.2%)
CIE-LAB	lab(35.01, 29.61, -58.93)
CIE-LCH	lch(35.01, 65.95, 296.68°)
OKLab	oklab(45.13% 0.003 -0.1699)
OKLCH	oklch(45.13% 0.17 271)
XYZ	xyz(11.8077, 8.5040, 43.1300)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3647B2 #B2A136

analogous

#3685B2 #3647B2 #6336B2

triadic

#3647B2 #B23647 #47B236

tetradic

#3647B2 #B23685 #B2A136 #36B263

square

#3647B2 #B23685 #B2A136 #36B263

split-complementary

#3647B2 #B26336 #85B236

monochromatic

#1A2254 #283483 #3647B2 #5969CD #8893DB

Accessibility & contrast

On white

7.77

#3647B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3647B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3647B2

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3647B2	#FFFFFF	#000000	##FFFFFF
##3647B2	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B6

Deuteranopia (green-blind)

#004DB0

Tritanopia (blue-blind)

#006275

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3647b2;
/* rgb */ color: rgb(54, 71, 178);
/* oklch */ color: oklch(45.1% 0.170 271.0);

Tailwind

colors: {
  custom: {
    50: '#7d7aca',
    500: '#3647b2',
    950: '#000000',
  },
}

SCSS

$custom: #3647b2;
$custom-light: #7d7aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3647b2",
  "rgb": {
    "r": 54,
    "g": 71,
    "b": 178
  },
  "hsl": {
    "h": 231.774,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45132,
    "c": 0.16997,
    "h": 271
  },
  "luminance": 0.08505
}

Semantic roles & 50–950 ramp

primary

#3647B2

secondary

#C5BB7F

accent

#C94BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3647B2

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

Preview Lab → · Contrast checker → · Palette generator →