#3648B8#3648B8

#3648B8 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.8% C 0.177 H 270.7°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#3648B8
RGB	rgb(54, 72, 184)
HSL	hsl(232, 55%, 47%)
HSV	hsv(232, 71%, 72%)
CMYK	cmyk(70.7%, 60.9%, 0%, 27.8%)
CIE-LAB	lab(35.75, 31.13, -61.27)
CIE-LCH	lch(35.75, 68.73, 296.93°)
OKLab	oklab(45.83% 0.0022 -0.1768)
OKLCH	oklch(45.83% 0.177 270.7)
XYZ	xyz(12.4875, 8.8785, 46.3937)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648B8 #B8A636

analogous

#3689B8 #3648B8 #6536B8

triadic

#3648B8 #B83648 #48B836

tetradic

#3648B8 #B83689 #B8A636 #36B865

square

#3648B8 #B83689 #B8A636 #36B865

split-complementary

#3648B8 #B86536 #89B836

monochromatic

#1A2359 #283589 #3648B8 #5C6CCF #8B97DD

Accessibility & contrast

On white

7.56

#3648B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3648B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648B8

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648B8	#FFFFFF	#000000	##FFFFFF
##3648B8	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABC

Deuteranopia (green-blind)

#004EB6

Tritanopia (blue-blind)

#006479

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3648b8;
/* rgb */ color: rgb(54, 72, 184);
/* oklch */ color: oklch(45.8% 0.177 270.7);

Tailwind

colors: {
  custom: {
    50: '#7e7ace',
    500: '#3648b8',
    950: '#000000',
  },
}

SCSS

$custom: #3648b8;
$custom-light: #7e7ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3648b8",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 184
  },
  "hsl": {
    "h": 231.692,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45831,
    "c": 0.17682,
    "h": 270.7
  },
  "luminance": 0.0888
}

Semantic roles & 50–950 ramp

primary

#3648B8

secondary

#C7BE82

accent

#C94ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3648B8

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

Preview Lab → · Contrast checker → · Palette generator →