#3640C3#3640C3

#3640C3 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.4% C 0.201 H 272.0°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#3640C3
RGB	rgb(54, 64, 195)
HSL	hsl(236, 57%, 49%)
HSV	hsv(236, 72%, 76%)
CMYK	cmyk(72.3%, 67.2%, 0%, 23.5%)
CIE-LAB	lab(34.78, 40.05, -69.32)
CIE-LCH	lch(34.78, 80.06, 300.02°)
OKLab	oklab(45.41% 0.007 -0.2004)
OKLCH	oklch(45.41% 0.201 272)
XYZ	xyz(13.2017, 8.3899, 52.5428)
Luminance	0.0839 (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

#3640C3 #C3B936

analogous

#3687C3 #3640C3 #7336C3

triadic

#3640C3 #C33640 #40C336

tetradic

#3640C3 #C33687 #C3B936 #36C373

square

#3640C3 #C33687 #C3B936 #36C373

split-complementary

#3640C3 #C37336 #87C336

monochromatic

#1B2163 #293093 #3640C3 #636BD4 #9298E1

Accessibility & contrast

On white

7.84

#3640C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3640C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3640C3

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3640C3	#FFFFFF	#000000	##FFFFFF
##3640C3	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C7

Deuteranopia (green-blind)

#004BC1

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3640c3;
/* rgb */ color: rgb(54, 64, 195);
/* oklch */ color: oklch(45.4% 0.201 272.0);

Tailwind

colors: {
  custom: {
    50: '#8175d6',
    500: '#3640c3',
    950: '#000000',
  },
}

SCSS

$custom: #3640c3;
$custom-light: #8175d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3640c3",
  "rgb": {
    "r": 54,
    "g": 64,
    "b": 195
  },
  "hsl": {
    "h": 235.745,
    "s": 56.627,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45414,
    "c": 0.20055,
    "h": 272
  },
  "luminance": 0.08391
}

Semantic roles & 50–950 ramp

primary

#3640C3

secondary

#CCC789

accent

#D548E0

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3640C3

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

Preview Lab → · Contrast checker → · Palette generator →