#4F64BB#4F64BB

#4F64BB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.1% C 0.138 H 270.9°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4F64BB
RGB	rgb(79, 100, 187)
HSL	hsl(228, 44%, 52%)
HSV	hsv(228, 58%, 73%)
CMYK	cmyk(57.8%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(44.75, 18.46, -48.41)
CIE-LCH	lch(44.75, 51.82, 290.88°)
OKLab	oklab(53.05% 0.0021 -0.1381)
OKLCH	oklch(53.05% 0.138 270.9)
XYZ	xyz(16.7483, 14.3632, 48.8939)
Luminance	0.1436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F64BB #BBA64F

analogous

#4F9ABB #4F64BB #704FBB

triadic

#4F64BB #BB4F64 #64BB4F

tetradic

#4F64BB #BB4F9A #BBA64F #4FBB70

square

#4F64BB #BB4F9A #BBA64F #4FBB70

split-complementary

#4F64BB #BB704F #9ABB4F

monochromatic

#283468 #394B94 #4F64BB #7B8BCC #A7B2DD

Accessibility & contrast

On white

5.42

#4F64BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#4F64BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F64BB

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F64BB	#FFFFFF	#000000	##FFFFFF
##4F64BB	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)

#3B6FBE

Deuteranopia (green-blind)

#2C65B9

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4f64bb;
/* rgb */ color: rgb(79, 100, 187);
/* oklch */ color: oklch(53.1% 0.138 270.9);

Tailwind

colors: {
  custom: {
    50: '#898fd0',
    500: '#4f64bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f64bb;
$custom-light: #898fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f64bb",
  "rgb": {
    "r": 79,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 228.333,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.53051,
    "c": 0.13809,
    "h": 270.9
  },
  "luminance": 0.14364
}

Semantic roles & 50–950 ramp

primary

#4F64BB

secondary

#CAC19B

accent

#BB54D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4F64BB

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

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