#4D66BB#4D66BB

#4D66BB is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.3% C 0.136 H 269.1°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#4D66BB
RGB	rgb(77, 102, 187)
HSL	hsl(226, 45%, 52%)
HSV	hsv(226, 59%, 73%)
CMYK	cmyk(58.8%, 45.5%, 0%, 26.7%)
CIE-LAB	lab(45.17, 16.80, -47.74)
CIE-LCH	lch(45.17, 50.61, 289.39°)
OKLab	oklab(53.34% -0.0022 -0.1361)
OKLCH	oklch(53.34% 0.136 269.1)
XYZ	xyz(16.7786, 14.6670, 48.9509)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66BB #BBA24D

analogous

#4D9DBB #4D66BB #6B4DBB

triadic

#4D66BB #BB4D66 #66BB4D

tetradic

#4D66BB #BB4D9D #BBA24D #4DBB6B

square

#4D66BB #BB4D9D #BBA24D #4DBB6B

split-complementary

#4D66BB #BB6B4D #9DBB4D

monochromatic

#273666 #384D93 #4D66BB #798CCC #A6B2DD

Accessibility & contrast

On white

5.34

#4D66BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#4D66BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66BB

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66BB	#FFFFFF	#000000	##FFFFFF
##4D66BB	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F70BE

Deuteranopia (green-blind)

#2F66B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4d66bb;
/* rgb */ color: rgb(77, 102, 187);
/* oklch */ color: oklch(53.3% 0.136 269.1);

Tailwind

colors: {
  custom: {
    50: '#8891d0',
    500: '#4d66bb',
    950: '#000000',
  },
}

SCSS

$custom: #4d66bb;
$custom-light: #8891d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66bb",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 187
  },
  "hsl": {
    "h": 226.364,
    "s": 44.715,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53344,
    "c": 0.13613,
    "h": 269.1
  },
  "luminance": 0.14668
}

Semantic roles & 50–950 ramp

primary

#4D66BB

secondary

#CABF9A

accent

#B753D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4D66BB

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

Preview Lab → · Contrast checker → · Palette generator →