#3645B5#3645B5

#3645B5 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.0% C 0.176 H 271.5°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#3645B5
RGB	rgb(54, 69, 181)
HSL	hsl(233, 54%, 46%)
HSV	hsv(233, 70%, 71%)
CMYK	cmyk(70.2%, 61.9%, 0%, 29%)
CIE-LAB	lab(34.75, 31.98, -61.13)
CIE-LCH	lch(34.75, 68.99, 297.62°)
OKLab	oklab(45.02% 0.0045 -0.1764)
OKLCH	oklch(45.02% 0.176 271.5)
XYZ	xyz(11.9871, 8.3755, 44.6920)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645B5 #B5A636

analogous

#3684B5 #3645B5 #6636B5

triadic

#3645B5 #B53645 #45B536

tetradic

#3645B5 #B53684 #B5A636 #36B566

square

#3645B5 #B53684 #B5A636 #36B566

split-complementary

#3645B5 #B56636 #84B536

monochromatic

#1A2157 #283386 #3645B5 #5A68CE #8993DC

Accessibility & contrast

On white

7.85

#3645B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3645B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645B5

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645B5	#FFFFFF	#000000	##FFFFFF
##3645B5	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B9

Deuteranopia (green-blind)

#004CB3

Tritanopia (blue-blind)

#006176

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3645b5;
/* rgb */ color: rgb(54, 69, 181);
/* oklch */ color: oklch(45.0% 0.176 271.5);

Tailwind

colors: {
  custom: {
    50: '#7e78cc',
    500: '#3645b5',
    950: '#000000',
  },
}

SCSS

$custom: #3645b5;
$custom-light: #7e78cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3645b5",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 181
  },
  "hsl": {
    "h": 232.913,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.45018,
    "c": 0.17647,
    "h": 271.5
  },
  "luminance": 0.08377
}

Semantic roles & 50–950 ramp

primary

#3645B5

secondary

#C6BE81

accent

#CC4ADD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3645B5

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

Preview Lab → · Contrast checker → · Palette generator →