#4D66BC#4D66BC

#4D66BC is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.4% C 0.138 H 269.2°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4D66BC
RGB	rgb(77, 102, 188)
HSL	hsl(226, 45%, 52%)
HSV	hsv(226, 59%, 74%)
CMYK	cmyk(59%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(45.23, 17.14, -48.22)
CIE-LCH	lch(45.23, 51.18, 289.57°)
OKLab	oklab(53.41% -0.002 -0.1375)
OKLCH	oklch(53.41% 0.138 269.2)
XYZ	xyz(16.8860, 14.7100, 49.5167)
Luminance	0.1471 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66BC #BCA34D

analogous

#4D9EBC #4D66BC #6B4DBC

triadic

#4D66BC #BC4D66 #66BC4D

tetradic

#4D66BC #BC4D9E #BCA34D #4DBC6B

square

#4D66BC #BC4D9E #BCA34D #4DBC6B

split-complementary

#4D66BC #BC6B4D #9EBC4D

monochromatic

#273668 #384D94 #4D66BC #798CCD #A6B2DD

Accessibility & contrast

On white

5.33

#4D66BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4D66BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66BC

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66BC	#FFFFFF	#000000	##FFFFFF
##4D66BC	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E70BF

Deuteranopia (green-blind)

#2E66BA

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4d66bc;
/* rgb */ color: rgb(77, 102, 188);
/* oklch */ color: oklch(53.4% 0.138 269.2);

Tailwind

colors: {
  custom: {
    50: '#8891d1',
    500: '#4d66bc',
    950: '#000000',
  },
}

SCSS

$custom: #4d66bc;
$custom-light: #8891d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66bc",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 226.486,
    "s": 45.306,
    "l": 51.961
  },
  "oklch": {
    "l": 0.53409,
    "c": 0.13755,
    "h": 269.2
  },
  "luminance": 0.14711
}

Semantic roles & 50–950 ramp

primary

#4D66BC

secondary

#CBC09A

accent

#B853D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4D66BC

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

Preview Lab → · Contrast checker → · Palette generator →