#4E66B1#4E66B1

#4E66B1 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.121 H 268.6°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4E66B1
RGB	rgb(78, 102, 177)
HSL	hsl(225, 39%, 50%)
HSV	hsv(225, 56%, 69%)
CMYK	cmyk(55.9%, 42.4%, 0%, 30.6%)
CIE-LAB	lab(44.65, 13.64, -42.74)
CIE-LCH	lch(44.65, 44.86, 287.70°)
OKLab	oklab(52.77% -0.0029 -0.1214)
OKLCH	oklch(52.77% 0.121 268.6)
XYZ	xyz(15.8264, 14.2956, 43.5118)
Luminance	0.1430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66B1 #B1994E

analogous

#4E97B1 #4E66B1 #684EB1

triadic

#4E66B1 #B14E66 #66B14E

tetradic

#4E66B1 #B14E97 #B1994E #4EB168

square

#4E66B1 #B14E97 #B1994E #4EB168

split-complementary

#4E66B1 #B1684E #97B14E

monochromatic

#29355C #3B4E87 #4E66B1 #788BC4 #A3AFD6

Accessibility & contrast

On white

5.44

#4E66B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#4E66B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66B1

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66B1	#FFFFFF	#000000	##FFFFFF
##4E66B1	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)

#466EB4

Deuteranopia (green-blind)

#3A66AF

Tritanopia (blue-blind)

#147683

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4e66b1;
/* rgb */ color: rgb(78, 102, 177);
/* oklch */ color: oklch(52.8% 0.121 268.6);

Tailwind

colors: {
  custom: {
    50: '#8791c9',
    500: '#4e66b1',
    950: '#000000',
  },
}

SCSS

$custom: #4e66b1;
$custom-light: #8791c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66b1",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 177
  },
  "hsl": {
    "h": 225.455,
    "s": 38.824,
    "l": 50
  },
  "oklch": {
    "l": 0.52773,
    "c": 0.12145,
    "h": 268.6
  },
  "luminance": 0.14297
}

Semantic roles & 50–950 ramp

primary

#4E66B1

secondary

#C4B997

accent

#B259CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E66B1

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

Preview Lab → · Contrast checker → · Palette generator →