#4A66BB#4A66BB

#4A66BB is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.2% C 0.137 H 267.8°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#4A66BB
RGB	rgb(74, 102, 187)
HSL	hsl(225, 45%, 51%)
HSV	hsv(225, 60%, 73%)
CMYK	cmyk(60.4%, 45.5%, 0%, 26.7%)
CIE-LAB	lab(45.00, 16.21, -48.02)
CIE-LCH	lch(45.00, 50.68, 288.65°)
OKLab	oklab(53.17% -0.0052 -0.137)
OKLCH	oklch(53.17% 0.137 267.8)
XYZ	xyz(16.5420, 14.5451, 48.9398)
Luminance	0.1455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A66BB #BB9F4A

analogous

#4A9EBB #4A66BB #664ABB

triadic

#4A66BB #BB4A66 #66BB4A

tetradic

#4A66BB #BB4A9E #BB9F4A #4ABB66

square

#4A66BB #BB4A9E #BB9F4A #4ABB66

split-complementary

#4A66BB #BB664A #9EBB4A

monochromatic

#263565 #374D91 #4A66BB #768CCC #A3B1DC

Accessibility & contrast

On white

5.37

#4A66BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#4A66BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A66BB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A66BB	#FFFFFF	#000000	##FFFFFF
##4A66BB	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)

#3E70BE

Deuteranopia (green-blind)

#2D66B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4a66bb;
/* rgb */ color: rgb(74, 102, 187);
/* oklch */ color: oklch(53.2% 0.137 267.8);

Tailwind

colors: {
  custom: {
    50: '#8691d0',
    500: '#4a66bb',
    950: '#000000',
  },
}

SCSS

$custom: #4a66bb;
$custom-light: #8691d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4a66bb",
  "rgb": {
    "r": 74,
    "g": 102,
    "b": 187
  },
  "hsl": {
    "h": 225.133,
    "s": 45.382,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53169,
    "c": 0.13711,
    "h": 267.8
  },
  "luminance": 0.14546
}

Semantic roles & 50–950 ramp

primary

#4A66BB

secondary

#C9BD97

accent

#B553D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4A66BB

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

Preview Lab → · Contrast checker → · Palette generator →