#4E66B5#4E66B5

#4E66B5 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.0% C 0.127 H 269.0°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4E66B5
RGB	rgb(78, 102, 181)
HSL	hsl(226, 41%, 51%)
HSV	hsv(226, 57%, 71%)
CMYK	cmyk(56.9%, 43.6%, 0%, 29%)
CIE-LAB	lab(44.88, 14.98, -44.71)
CIE-LCH	lch(44.88, 47.15, 288.52°)
OKLab	oklab(53.02% -0.0021 -0.1272)
OKLCH	oklch(53.02% 0.127 269)
XYZ	xyz(16.2310, 14.4574, 45.6423)
Luminance	0.1446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66B5 #B59D4E

analogous

#4E9AB5 #4E66B5 #694EB5

triadic

#4E66B5 #B54E66 #66B54E

tetradic

#4E66B5 #B54E9A #B59D4E #4EB569

square

#4E66B5 #B54E9A #B59D4E #4EB569

split-complementary

#4E66B5 #B5694E #9AB54E

monochromatic

#283560 #3A4D8B #4E66B5 #798BC7 #A4B1D9

Accessibility & contrast

On white

5.40

#4E66B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#4E66B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66B5

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66B5	#FFFFFF	#000000	##FFFFFF
##4E66B5	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436FB8

Deuteranopia (green-blind)

#3666B3

Tritanopia (blue-blind)

#097785

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4e66b5;
/* rgb */ color: rgb(78, 102, 181);
/* oklch */ color: oklch(53.0% 0.127 269.0);

Tailwind

colors: {
  custom: {
    50: '#8791cb',
    500: '#4e66b5',
    950: '#000000',
  },
}

SCSS

$custom: #4e66b5;
$custom-light: #8791cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66b5",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 226.019,
    "s": 41.036,
    "l": 50.784
  },
  "oklch": {
    "l": 0.53022,
    "c": 0.12723,
    "h": 269
  },
  "luminance": 0.14459
}

Semantic roles & 50–950 ramp

primary

#4E66B5

secondary

#C6BC99

accent

#B457D1

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E66B5

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

Preview Lab → · Contrast checker → · Palette generator →