#3648B7#3648B7

#3648B7 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.175 H 270.7°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#3648B7
RGB	rgb(54, 72, 183)
HSL	hsl(232, 54%, 46%)
HSV	hsv(232, 70%, 72%)
CMYK	cmyk(70.5%, 60.7%, 0%, 28.2%)
CIE-LAB	lab(35.67, 30.77, -60.82)
CIE-LCH	lch(35.67, 68.16, 296.83°)
OKLab	oklab(45.75% 0.0022 -0.1755)
OKLCH	oklch(45.75% 0.175 270.7)
XYZ	xyz(12.3830, 8.8367, 45.8436)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3648B7 #B7A536

analogous

#3689B7 #3648B7 #6536B7

triadic

#3648B7 #B73648 #48B736

tetradic

#3648B7 #B73689 #B7A536 #36B765

square

#3648B7 #B73689 #B7A536 #36B765

split-complementary

#3648B7 #B76536 #89B736

monochromatic

#1A2358 #283588 #3648B7 #5B6CCF #8B96DD

Accessibility & contrast

On white

7.59

#3648B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3648B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3648B7

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3648B7	#FFFFFF	#000000	##FFFFFF
##3648B7	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABB

Deuteranopia (green-blind)

#004EB5

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3648b7;
/* rgb */ color: rgb(54, 72, 183);
/* oklch */ color: oklch(45.7% 0.175 270.7);

Tailwind

colors: {
  custom: {
    50: '#7e7acd',
    500: '#3648b7',
    950: '#000000',
  },
}

SCSS

$custom: #3648b7;
$custom-light: #7e7acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3648b7",
  "rgb": {
    "r": 54,
    "g": 72,
    "b": 183
  },
  "hsl": {
    "h": 231.628,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45745,
    "c": 0.17547,
    "h": 270.7
  },
  "luminance": 0.08838
}

Semantic roles & 50–950 ramp

primary

#3648B7

secondary

#C7BD82

accent

#C94ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3648B7

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

Preview Lab → · Contrast checker → · Palette generator →