#4666B9#4666B9

#4666B9 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.136 H 266.0°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4666B9
RGB	rgb(70, 102, 185)
HSL	hsl(223, 45%, 50%)
HSV	hsv(223, 62%, 73%)
CMYK	cmyk(62.2%, 44.9%, 0%, 27.5%)
CIE-LAB	lab(44.67, 14.75, -47.41)
CIE-LCH	lch(44.67, 49.65, 287.28°)
OKLab	oklab(52.82% -0.0094 -0.1353)
OKLCH	oklch(52.82% 0.136 266)
XYZ	xyz(16.0311, 14.3062, 47.8061)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4666B9 #B99946

analogous

#46A0B9 #4666B9 #5F46B9

triadic

#4666B9 #B94666 #66B946

tetradic

#4666B9 #B946A0 #B99946 #46B95F

square

#4666B9 #B946A0 #B99946 #46B95F

split-complementary

#4666B9 #B95F46 #A0B946

monochromatic

#243560 #354E8D #4666B9 #728BCA #9FAFDB

Accessibility & contrast

On white

5.44

#4666B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#4666B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4666B9

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4666B9	#FFFFFF	#000000	##FFFFFF
##4666B9	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6FBC

Deuteranopia (green-blind)

#2D65B7

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4666b9;
/* rgb */ color: rgb(70, 102, 185);
/* oklch */ color: oklch(52.8% 0.136 266.0);

Tailwind

colors: {
  custom: {
    50: '#8491ce',
    500: '#4666b9',
    950: '#000000',
  },
}

SCSS

$custom: #4666b9;
$custom-light: #8491ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4666b9",
  "rgb": {
    "r": 70,
    "g": 102,
    "b": 185
  },
  "hsl": {
    "h": 223.304,
    "s": 45.098,
    "l": 50
  },
  "oklch": {
    "l": 0.52815,
    "c": 0.1356,
    "h": 266
  },
  "luminance": 0.14308
}

Semantic roles & 50–950 ramp

primary

#4666B9

secondary

#C7B994

accent

#B153D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4666B9

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

Preview Lab → · Contrast checker → · Palette generator →