#3648B2#3648B2

#3648B2 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.3% C 0.169 H 270.7°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3648B2
RGB	rgb(54, 72, 178)
HSL	hsl(231, 53%, 45%)
HSV	hsv(231, 70%, 70%)
CMYK	cmyk(69.7%, 59.6%, 0%, 30.2%)
CIE-LAB	lab(35.27, 28.96, -58.52)
CIE-LCH	lch(35.27, 65.29, 296.33°)
OKLab	oklab(45.32% 0.0022 -0.1687)
OKLCH	oklch(45.32% 0.169 270.7)
XYZ	xyz(11.8718, 8.6322, 43.1514)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648B2 #B2A036

analogous

#3686B2 #3648B2 #6236B2

triadic

#3648B2 #B23648 #48B236

tetradic

#3648B2 #B23686 #B2A036 #36B262

square

#3648B2 #B23686 #B2A036 #36B262

split-complementary

#3648B2 #B26236 #86B236

monochromatic

#1A2254 #283583 #3648B2 #5969CD #8894DB

Accessibility & contrast

On white

7.70

#3648B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3648B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648B2

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648B2	#FFFFFF	#000000	##FFFFFF
##3648B2	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B6

Deuteranopia (green-blind)

#004DB0

Tritanopia (blue-blind)

#006276

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3648b2;
/* rgb */ color: rgb(54, 72, 178);
/* oklch */ color: oklch(45.3% 0.169 270.7);

Tailwind

colors: {
  custom: {
    50: '#7d7aca',
    500: '#3648b2',
    950: '#000000',
  },
}

SCSS

$custom: #3648b2;
$custom-light: #7d7aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3648b2",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 178
  },
  "hsl": {
    "h": 231.29,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.45322,
    "c": 0.16872,
    "h": 270.7
  },
  "luminance": 0.08633
}

Semantic roles & 50–950 ramp

primary

#3648B2

secondary

#C5BB7F

accent

#C84BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3648B2

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

Preview Lab → · Contrast checker → · Palette generator →