#4663BB#4663BB

#4663BB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.3% C 0.142 H 267.6°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4663BB
RGB	rgb(70, 99, 187)
HSL	hsl(225, 46%, 50%)
HSV	hsv(225, 63%, 73%)
CMYK	cmyk(62.6%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.96, 17.35, -49.70)
CIE-LCH	lch(43.96, 52.65, 289.25°)
OKLab	oklab(52.31% -0.006 -0.1421)
OKLCH	oklch(52.31% 0.142 267.6)
XYZ	xyz(15.9542, 13.8122, 48.8293)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4663BB #BB9E46

analogous

#469EBB #4663BB #6346BB

triadic

#4663BB #BB4663 #63BB46

tetradic

#4663BB #BB469E #BB9E46 #46BB63

square

#4663BB #BB469E #BB9E46 #46BB63

split-complementary

#4663BB #BB6346 #9EBB46

monochromatic

#243462 #354B8F #4663BB #7389CB #A0AEDC

Accessibility & contrast

On white

5.58

#4663BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#4663BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4663BB

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4663BB	#FFFFFF	#000000	##FFFFFF
##4663BB	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376EBE

Deuteranopia (green-blind)

#2363B9

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4663bb;
/* rgb */ color: rgb(70, 99, 187);
/* oklch */ color: oklch(52.3% 0.142 267.6);

Tailwind

colors: {
  custom: {
    50: '#848fd0',
    500: '#4663bb',
    950: '#000000',
  },
}

SCSS

$custom: #4663bb;
$custom-light: #848fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4663bb",
  "rgb": {
    "r": 70,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 225.128,
    "s": 46.245,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52313,
    "c": 0.14219,
    "h": 267.6
  },
  "luminance": 0.13814
}

Semantic roles & 50–950 ramp

primary

#4663BB

secondary

#C8BC94

accent

#B552D6

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4663BB

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

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