#4666BC#4666BC

#4666BC is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.0% C 0.140 H 266.4°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4666BC
RGB	rgb(70, 102, 188)
HSL	hsl(224, 47%, 51%)
HSV	hsv(224, 63%, 74%)
CMYK	cmyk(62.8%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(44.85, 15.80, -48.86)
CIE-LCH	lch(44.85, 51.35, 287.92°)
OKLab	oklab(53.01% -0.0089 -0.1396)
OKLCH	oklch(53.01% 0.14 266.4)
XYZ	xyz(16.3511, 14.4342, 49.4916)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4666BC #BC9C46

analogous

#46A1BC #4666BC #6146BC

triadic

#4666BC #BC4666 #66BC46

tetradic

#4666BC #BC46A1 #BC9C46 #46BC61

square

#4666BC #BC46A1 #BC9C46 #46BC61

split-complementary

#4666BC #BC6146 #A1BC46

monochromatic

#243564 #344D90 #4666BC #738BCC #A0B0DD

Accessibility & contrast

On white

5.40

#4666BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#4666BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4666BC

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4666BC	#FFFFFF	#000000	##FFFFFF
##4666BC	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D70BF

Deuteranopia (green-blind)

#2965BA

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4666bc;
/* rgb */ color: rgb(70, 102, 188);
/* oklch */ color: oklch(53.0% 0.140 266.4);

Tailwind

colors: {
  custom: {
    50: '#8491d1',
    500: '#4666bc',
    950: '#000000',
  },
}

SCSS

$custom: #4666bc;
$custom-light: #8491d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4666bc",
  "rgb": {
    "r": 70,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 223.729,
    "s": 46.825,
    "l": 50.588
  },
  "oklch": {
    "l": 0.53011,
    "c": 0.13984,
    "h": 266.4
  },
  "luminance": 0.14436
}

Semantic roles & 50–950 ramp

primary

#4666BC

secondary

#C9BB95

accent

#B251D6

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4666BC

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

Preview Lab → · Contrast checker → · Palette generator →