#4066BC#4066BC

#4066BC is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.7% C 0.142 H 264.2°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4066BC
RGB	rgb(64, 102, 188)
HSL	hsl(222, 49%, 49%)
HSV	hsv(222, 66%, 74%)
CMYK	cmyk(66%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(44.55, 14.74, -49.36)
CIE-LCH	lch(44.55, 51.51, 286.63°)
OKLab	oklab(52.7% -0.0144 -0.1411)
OKLCH	oklch(52.7% 0.142 264.2)
XYZ	xyz(15.9397, 14.2221, 49.4723)
Luminance	0.1422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4066BC #BC9640

analogous

#40A4BC #4066BC #5840BC

triadic

#4066BC #BC4066 #66BC40

tetradic

#4066BC #BC40A4 #BC9640 #40BC58

square

#4066BC #BC40A4 #BC9640 #40BC58

split-complementary

#4066BC #BC5840 #A4BC40

monochromatic

#213461 #304D8E #4066BC #6C8ACD #9AAEDD

Accessibility & contrast

On white

5.46

#4066BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#4066BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4066BC

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4066BC	#FFFFFF	#000000	##FFFFFF
##4066BC	1.00	5.46	3.84	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6FBF

Deuteranopia (green-blind)

#2564BA

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4066bc;
/* rgb */ color: rgb(64, 102, 188);
/* oklch */ color: oklch(52.7% 0.142 264.2);

Tailwind

colors: {
  custom: {
    50: '#8291d1',
    500: '#4066bc',
    950: '#000000',
  },
}

SCSS

$custom: #4066bc;
$custom-light: #8291d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4066bc",
  "rgb": {
    "r": 64,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 221.613,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52701,
    "c": 0.14187,
    "h": 264.2
  },
  "luminance": 0.14224
}

Semantic roles & 50–950 ramp

primary

#4066BC

secondary

#C9B78F

accent

#AF4FD9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #4066BC

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

Preview Lab → · Contrast checker → · Palette generator →