#3645CF#3645CF

#3645CF is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.4% C 0.210 H 270.8°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#3645CF
RGB	rgb(54, 69, 207)
HSL	hsl(234, 61%, 51%)
HSV	hsv(234, 74%, 81%)
CMYK	cmyk(73.9%, 66.7%, 0%, 18.8%)
CIE-LAB	lab(37.01, 41.15, -72.64)
CIE-LCH	lch(37.01, 83.49, 299.53°)
OKLab	oklab(47.37% 0.003 -0.2101)
OKLCH	oklch(47.37% 0.21 270.8)
XYZ	xyz(14.9081, 9.5439, 60.0759)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3645CF #CFC036

analogous

#3691CF #3645CF #7336CF

triadic

#3645CF #CF3645 #45CF36

tetradic

#3645CF #CF3691 #CFC036 #36CF73

square

#3645CF #CF3691 #CFC036 #36CF73

split-complementary

#3645CF #CF7336 #91CF36

monochromatic

#1B2370 #2733A1 #3645CF #6773DB #99A0E7

Accessibility & contrast

On white

7.22

#3645CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#3645CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3645CF

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3645CF	#FFFFFF	#000000	##FFFFFF
##3645CF	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED3

Deuteranopia (green-blind)

#0050CC

Tritanopia (blue-blind)

#006A84

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3645cf;
/* rgb */ color: rgb(54, 69, 207);
/* oklch */ color: oklch(47.4% 0.210 270.8);

Tailwind

colors: {
  custom: {
    50: '#8479df',
    500: '#3645cf',
    950: '#000000',
  },
}

SCSS

$custom: #3645cf;
$custom-light: #8479df;
$custom-dark: #000000;

JSON

{
  "hex": "#3645cf",
  "rgb": {
    "r": 54,
    "g": 69,
    "b": 207
  },
  "hsl": {
    "h": 234.118,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.47366,
    "c": 0.21014,
    "h": 270.8
  },
  "luminance": 0.09546
}

Semantic roles & 50–950 ramp

primary

#3645CF

secondary

#D2CC8F

accent

#D543E5

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3645CF

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

Preview Lab → · Contrast checker → · Palette generator →