#4B64CB#4B64CB

#4B64CB is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.9% C 0.162 H 270.0°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#4B64CB
RGB	rgb(75, 100, 203)
HSL	hsl(228, 55%, 55%)
HSV	hsv(228, 63%, 80%)
CMYK	cmyk(63.1%, 50.7%, 0%, 20.4%)
CIE-LAB	lab(45.52, 23.18, -56.43)
CIE-LCH	lch(45.52, 61.00, 292.33°)
OKLab	oklab(53.9% -0.0001 -0.1617)
OKLCH	oklch(53.9% 0.162 270)
XYZ	xyz(18.2347, 14.9204, 58.4073)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B64CB #CBB24B

analogous

#4BA4CB #4B64CB #724BCB

triadic

#4B64CB #CB4B64 #64CB4B

tetradic

#4B64CB #CB4BA4 #CBB24B #4BCB72

square

#4B64CB #CB4BA4 #CBB24B #4BCB72

split-complementary

#4B64CB #CB724B #A4CB4B

monochromatic

#233479 #3148A8 #4B64CB #7A8DD9 #AAB6E6

Accessibility & contrast

On white

5.27

#4B64CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#4B64CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B64CB

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B64CB	#FFFFFF	#000000	##FFFFFF
##4B64CB	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2972CF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#007C8E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4b64cb;
/* rgb */ color: rgb(75, 100, 203);
/* oklch */ color: oklch(53.9% 0.162 270.0);

Tailwind

colors: {
  custom: {
    50: '#8a8fdb',
    500: '#4b64cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b64cb;
$custom-light: #8a8fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4b64cb",
  "rgb": {
    "r": 75,
    "g": 100,
    "b": 203
  },
  "hsl": {
    "h": 228.281,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.53902,
    "c": 0.16173,
    "h": 270
  },
  "luminance": 0.14922
}

Semantic roles & 50–950 ramp

primary

#4B64CB

secondary

#D4C99E

accent

#C149DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4B64CB

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

Preview Lab → · Contrast checker → · Palette generator →