#4066A3#4066A3

#4066A3 is a mid, moderate blue. Relative luminance 0.132; OKLCH L 51.1% C 0.107 H 259.5°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#4066A3
RGB	rgb(64, 102, 163)
HSL	hsl(217, 44%, 45%)
HSV	hsv(217, 61%, 64%)
CMYK	cmyk(60.7%, 37.4%, 0%, 36.1%)
CIE-LAB	lab(43.12, 5.90, -36.99)
CIE-LCH	lch(43.12, 37.46, 279.06°)
OKLab	oklab(51.13% -0.0195 -0.1049)
OKLCH	oklch(51.13% 0.107 259.5)
XYZ	xyz(13.4743, 13.2359, 36.4879)
Luminance	0.1324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4066A3 #A37D40

analogous

#4097A3 #4066A3 #4C40A3

triadic

#4066A3 #A34066 #66A340

tetradic

#4066A3 #A34097 #A37D40 #40A34C

square

#4066A3 #A34097 #A37D40 #40A34C

split-complementary

#4066A3 #A34C40 #97A340

monochromatic

#1D2F4B #2F4B77 #4066A3 #6085C0 #8CA7D2

Accessibility & contrast

On white

5.76

#4066A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#4066A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4066A3

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4066A3	#FFFFFF	#000000	##FFFFFF
##4066A3	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C6BA5

Deuteranopia (green-blind)

#3F62A2

Tritanopia (blue-blind)

#00747D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4066a3;
/* rgb */ color: rgb(64, 102, 163);
/* oklch */ color: oklch(51.1% 0.107 259.5);

Tailwind

colors: {
  custom: {
    50: '#7d91be',
    500: '#4066a3',
    950: '#000000',
  },
}

SCSS

$custom: #4066a3;
$custom-light: #7d91be;
$custom-dark: #000000;

JSON

{
  "hex": "#4066a3",
  "rgb": {
    "r": 64,
    "g": 102,
    "b": 163
  },
  "hsl": {
    "h": 216.97,
    "s": 43.612,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51129,
    "c": 0.10667,
    "h": 259.5
  },
  "luminance": 0.13237
}

Semantic roles & 50–950 ramp

primary

#4066A3

secondary

#BDA682

accent

#A354D3

background

#F8F8FB

surface

#EFF0F7

border

#CACBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #4066A3

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

Preview Lab → · Contrast checker → · Palette generator →