#3645B7#3645B7

#3645B7 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.2% C 0.179 H 271.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3645B7
RGB	rgb(54, 69, 183)
HSL	hsl(233, 54%, 46%)
HSV	hsv(233, 70%, 72%)
CMYK	cmyk(70.5%, 62.3%, 0%, 28.2%)
CIE-LAB	lab(34.92, 32.70, -62.04)
CIE-LCH	lch(34.92, 70.13, 297.79°)
OKLab	oklab(45.19% 0.0044 -0.1791)
OKLCH	oklch(45.19% 0.179 271.4)
XYZ	xyz(12.1938, 8.4582, 45.7805)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.64

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645B7 #B7A836

analogous

#3686B7 #3645B7 #6836B7

triadic

#3645B7 #B73645 #45B736

tetradic

#3645B7 #B73686 #B7A836 #36B768

square

#3645B7 #B73686 #B7A836 #36B768

split-complementary

#3645B7 #B76836 #86B736

monochromatic

#1A2158 #283388 #3645B7 #5B69CF #8B94DD

Accessibility & contrast

On white

7.80

#3645B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3645B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645B7

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645B7	#FFFFFF	#000000	##FFFFFF
##3645B7	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BB

Deuteranopia (green-blind)

#004CB5

Tritanopia (blue-blind)

#006277

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3645b7;
/* rgb */ color: rgb(54, 69, 183);
/* oklch */ color: oklch(45.2% 0.179 271.4);

Tailwind

colors: {
  custom: {
    50: '#7e78ce',
    500: '#3645b7',
    950: '#000000',
  },
}

SCSS

$custom: #3645b7;
$custom-light: #7e78ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3645b7",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 183
  },
  "hsl": {
    "h": 233.023,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45192,
    "c": 0.17913,
    "h": 271.4
  },
  "luminance": 0.08459
}

Semantic roles & 50–950 ramp

primary

#3645B7

secondary

#C7BF82

accent

#CD4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3645B7

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

Preview Lab → · Contrast checker → · Palette generator →