#4D66B2#4D66B2

#4D66B2 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.123 H 268.3°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4D66B2
RGB	rgb(77, 102, 178)
HSL	hsl(225, 40%, 50%)
HSV	hsv(225, 57%, 70%)
CMYK	cmyk(56.7%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(44.65, 13.76, -43.33)
CIE-LCH	lch(44.65, 45.46, 287.61°)
OKLab	oklab(52.77% -0.0037 -0.1232)
OKLCH	oklch(52.77% 0.123 268.3)
XYZ	xyz(15.8451, 14.2937, 44.0348)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66B2 #B2994D

analogous

#4D98B2 #4D66B2 #674DB2

triadic

#4D66B2 #B24D66 #66B24D

tetradic

#4D66B2 #B24D98 #B2994D #4DB267

square

#4D66B2 #B24D98 #B2994D #4DB267

split-complementary

#4D66B2 #B2674D #98B24D

monochromatic

#28355D #3B4E87 #4D66B2 #788BC4 #A2AFD7

Accessibility & contrast

On white

5.44

#4D66B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#4D66B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66B2

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66B2	#FFFFFF	#000000	##FFFFFF
##4D66B2	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456EB5

Deuteranopia (green-blind)

#3865B0

Tritanopia (blue-blind)

#0B7783

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4d66b2;
/* rgb */ color: rgb(77, 102, 178);
/* oklch */ color: oklch(52.8% 0.123 268.3);

Tailwind

colors: {
  custom: {
    50: '#8691c9',
    500: '#4d66b2',
    950: '#000000',
  },
}

SCSS

$custom: #4d66b2;
$custom-light: #8691c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66b2",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 225.149,
    "s": 39.608,
    "l": 50
  },
  "oklch": {
    "l": 0.52773,
    "c": 0.12324,
    "h": 268.3
  },
  "luminance": 0.14295
}

Semantic roles & 50–950 ramp

primary

#4D66B2

secondary

#C4B997

accent

#B258CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4D66B2

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

Preview Lab → · Contrast checker → · Palette generator →