#3B64BB#3B64BB

#3B64BB is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.0% C 0.145 H 263.3°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#3B64BB
RGB	rgb(59, 100, 187)
HSL	hsl(221, 52%, 48%)
HSV	hsv(221, 68%, 73%)
CMYK	cmyk(68.4%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(43.70, 14.83, -50.16)
CIE-LCH	lch(43.70, 52.30, 286.47°)
OKLab	oklab(51.96% -0.0169 -0.1436)
OKLCH	oklch(51.96% 0.145 263.3)
XYZ	xyz(15.3273, 13.6305, 48.8273)
Luminance	0.1363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B64BB #BB923B

analogous

#3BA4BB #3B64BB #523BBB

triadic

#3B64BB #BB3B64 #64BB3B

tetradic

#3B64BB #BB3BA4 #BB923B #3BBB52

square

#3B64BB #BB3BA4 #BB923B #3BBB52

split-complementary

#3B64BB #BB523B #A4BB3B

monochromatic

#1E325E #2C4B8C #3B64BB #6587CE #93ABDD

Accessibility & contrast

On white

5.64

#3B64BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3B64BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B64BB

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B64BB	#FFFFFF	#000000	##FFFFFF
##3B64BB	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBE

Deuteranopia (green-blind)

#1D62B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3b64bb;
/* rgb */ color: rgb(59, 100, 187);
/* oklch */ color: oklch(52.0% 0.145 263.3);

Tailwind

colors: {
  custom: {
    50: '#7f8fd0',
    500: '#3b64bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b64bb;
$custom-light: #7f8fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b64bb",
  "rgb": {
    "r": 59,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 220.781,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51964,
    "c": 0.14459,
    "h": 263.3
  },
  "luminance": 0.13632
}

Semantic roles & 50–950 ramp

primary

#3B64BB

secondary

#C8B48A

accent

#AE4CDB

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3B64BB

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

Preview Lab → · Contrast checker → · Palette generator →