#4E66B3#4E66B3

#4E66B3 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.9% C 0.124 H 268.8°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4E66B3
RGB	rgb(78, 102, 179)
HSL	hsl(226, 40%, 50%)
HSV	hsv(226, 56%, 70%)
CMYK	cmyk(56.4%, 43%, 0%, 29.8%)
CIE-LAB	lab(44.77, 14.31, -43.73)
CIE-LCH	lch(44.77, 46.01, 288.12°)
OKLab	oklab(52.9% -0.0025 -0.1243)
OKLCH	oklch(52.9% 0.124 268.8)
XYZ	xyz(16.0272, 14.3759, 44.5693)
Luminance	0.1438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66B3 #B39B4E

analogous

#4E98B3 #4E66B3 #694EB3

triadic

#4E66B3 #B34E66 #66B34E

tetradic

#4E66B3 #B34E98 #B39B4E #4EB369

square

#4E66B3 #B34E98 #B39B4E #4EB369

split-complementary

#4E66B3 #B3694E #98B34E

monochromatic

#28355E #3B4D89 #4E66B3 #798BC5 #A4B0D8

Accessibility & contrast

On white

5.42

#4E66B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#4E66B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66B3

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66B3	#FFFFFF	#000000	##FFFFFF
##4E66B3	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456FB6

Deuteranopia (green-blind)

#3866B1

Tritanopia (blue-blind)

#0F7784

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4e66b3;
/* rgb */ color: rgb(78, 102, 179);
/* oklch */ color: oklch(52.9% 0.124 268.8);

Tailwind

colors: {
  custom: {
    50: '#8791ca',
    500: '#4e66b3',
    950: '#000000',
  },
}

SCSS

$custom: #4e66b3;
$custom-light: #8791ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66b3",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 179
  },
  "hsl": {
    "h": 225.743,
    "s": 39.921,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52897,
    "c": 0.12435,
    "h": 268.8
  },
  "luminance": 0.14377
}

Semantic roles & 50–950 ramp

primary

#4E66B3

secondary

#C5BA98

accent

#B358D0

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E66B3

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

Preview Lab → · Contrast checker → · Palette generator →