#3640BF#3640BF

#3640BF is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.195 H 272.2°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3640BF
RGB	rgb(54, 64, 191)
HSL	hsl(236, 56%, 48%)
HSV	hsv(236, 72%, 75%)
CMYK	cmyk(71.7%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.42, 38.67, -67.57)
CIE-LCH	lch(34.42, 77.85, 299.78°)
OKLab	oklab(45.04% 0.0074 -0.1953)
OKLCH	oklch(45.04% 0.195 272.2)
XYZ	xyz(12.7555, 8.2114, 50.1928)
Luminance	0.0821 (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

#3640BF #BFB536

analogous

#3685BF #3640BF #7036BF

triadic

#3640BF #BF3640 #40BF36

tetradic

#3640BF #BF3685 #BFB536 #36BF70

square

#3640BF #BF3685 #BFB536 #36BF70

split-complementary

#3640BF #BF7036 #85BF36

monochromatic

#1B2060 #29308F #3640BF #6068D2 #9096E0

Accessibility & contrast

On white

7.95

#3640BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3640BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3640BF

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3640BF	#FFFFFF	#000000	##FFFFFF
##3640BF	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3640bf;
/* rgb */ color: rgb(54, 64, 191);
/* oklch */ color: oklch(45.0% 0.195 272.2);

Tailwind

colors: {
  custom: {
    50: '#8075d3',
    500: '#3640bf',
    950: '#000000',
  },
}

SCSS

$custom: #3640bf;
$custom-light: #8075d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3640bf",
  "rgb": {
    "r": 54,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 235.62,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4504,
    "c": 0.19545,
    "h": 272.2
  },
  "luminance": 0.08213
}

Semantic roles & 50–950 ramp

primary

#3640BF

secondary

#CAC587

accent

#D449DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3640BF

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

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