#3B64CB#3B64CB

#3B64CB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.1% C 0.167 H 264.9°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3B64CB
RGB	rgb(59, 100, 203)
HSL	hsl(223, 58%, 51%)
HSV	hsv(223, 71%, 80%)
CMYK	cmyk(70.9%, 50.7%, 0%, 20.4%)
CIE-LAB	lab(44.74, 20.67, -57.74)
CIE-LCH	lch(44.74, 61.33, 289.70°)
OKLab	oklab(53.09% -0.0148 -0.1659)
OKLCH	oklch(53.09% 0.167 264.9)
XYZ	xyz(17.1365, 14.3542, 58.3558)
Luminance	0.1436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B64CB #CBA23B

analogous

#3BACCB #3B64CB #5A3BCB

triadic

#3B64CB #CB3B64 #64CB3B

tetradic

#3B64CB #CB3BAC #CBA23B #3BCB5A

square

#3B64CB #CB3BAC #CBA23B #3BCB5A

split-complementary

#3B64CB #CB5A3B #ACCB3B

monochromatic

#1D346E #2A4B9F #3B64CB #6B8AD8 #9CB1E5

Accessibility & contrast

On white

5.42

#3B64CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#3B64CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B64CB

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B64CB	#FFFFFF	#000000	##FFFFFF
##3B64CB	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2571CF

Deuteranopia (green-blind)

#0064C9

Tritanopia (blue-blind)

#007D8E

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3b64cb;
/* rgb */ color: rgb(59, 100, 203);
/* oklch */ color: oklch(53.1% 0.167 264.9);

Tailwind

colors: {
  custom: {
    50: '#838fdb',
    500: '#3b64cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b64cb;
$custom-light: #838fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3b64cb",
  "rgb": {
    "r": 59,
    "g": 100,
    "b": 203
  },
  "hsl": {
    "h": 222.917,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.5309,
    "c": 0.16657,
    "h": 264.9
  },
  "luminance": 0.14356
}

Semantic roles & 50–950 ramp

primary

#3B64CB

secondary

#D1BF91

accent

#B547E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3B64CB

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

Preview Lab → · Contrast checker → · Palette generator →