#4666BF#4666BF

#4666BF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.2% C 0.144 H 266.7°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#4666BF
RGB	rgb(70, 102, 191)
HSL	hsl(224, 49%, 51%)
HSV	hsv(224, 63%, 75%)
CMYK	cmyk(63.4%, 46.6%, 0%, 25.1%)
CIE-LAB	lab(45.03, 16.85, -50.31)
CIE-LCH	lch(45.03, 53.06, 288.52°)
OKLab	oklab(53.21% -0.0084 -0.1438)
OKLCH	oklch(53.21% 0.144 266.7)
XYZ	xyz(16.6779, 14.5649, 51.2125)
Luminance	0.1457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4666BF #BF9F46

analogous

#46A2BF #4666BF #6246BF

triadic

#4666BF #BF4666 #66BF46

tetradic

#4666BF #BF46A2 #BF9F46 #46BF62

square

#4666BF #BF46A2 #BF9F46 #46BF62

split-complementary

#4666BF #BF6246 #A2BF46

monochromatic

#243567 #334D94 #4666BF #738CCF #A1B1DE

Accessibility & contrast

On white

5.37

#4666BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#4666BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4666BF

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4666BF	#FFFFFF	#000000	##FFFFFF
##4666BF	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A70C2

Deuteranopia (green-blind)

#2565BD

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4666bf;
/* rgb */ color: rgb(70, 102, 191);
/* oklch */ color: oklch(53.2% 0.144 266.7);

Tailwind

colors: {
  custom: {
    50: '#8591d3',
    500: '#4666bf',
    950: '#000000',
  },
}

SCSS

$custom: #4666bf;
$custom-light: #8591d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4666bf",
  "rgb": {
    "r": 70,
    "g": 102,
    "b": 191
  },
  "hsl": {
    "h": 224.132,
    "s": 48.594,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53211,
    "c": 0.14406,
    "h": 266.7
  },
  "luminance": 0.14566
}

Semantic roles & 50–950 ramp

primary

#4666BF

secondary

#CBBD96

accent

#B450D8

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #4666BF

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

Preview Lab → · Contrast checker → · Palette generator →