#4E66C9#4E66C9

#4E66C9 is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.3% C 0.156 H 270.3°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#4E66C9
RGB	rgb(78, 102, 201)
HSL	hsl(228, 53%, 55%)
HSV	hsv(228, 61%, 79%)
CMYK	cmyk(61.2%, 49.3%, 0%, 21.2%)
CIE-LAB	lab(46.09, 21.77, -54.35)
CIE-LCH	lch(46.09, 58.55, 291.83°)
OKLab	oklab(54.34% 0.0007 -0.1555)
OKLCH	oklch(54.34% 0.156 270.3)
XYZ	xyz(18.4323, 15.3379, 57.2362)
Luminance	0.1534 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66C9 #C9B14E

analogous

#4EA3C9 #4E66C9 #744EC9

triadic

#4E66C9 #C94E66 #66C94E

tetradic

#4E66C9 #C94EA3 #C9B14E #4EC974

square

#4E66C9 #C94EA3 #C9B14E #4EC974

split-complementary

#4E66C9 #C9744E #A3C94E

monochromatic

#253578 #334AA7 #4E66C9 #7D8FD7 #ACB7E6

Accessibility & contrast

On white

5.16

#4E66C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#4E66C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66C9

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66C9	#FFFFFF	#000000	##FFFFFF
##4E66C9	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3273CD

Deuteranopia (green-blind)

#1868C7

Tritanopia (blue-blind)

#007D8E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4e66c9;
/* rgb */ color: rgb(78, 102, 201);
/* oklch */ color: oklch(54.3% 0.156 270.3);

Tailwind

colors: {
  custom: {
    50: '#8b91da',
    500: '#4e66c9',
    950: '#000000',
  },
}

SCSS

$custom: #4e66c9;
$custom-light: #8b91da;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66c9",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 201
  },
  "hsl": {
    "h": 228.293,
    "s": 53.247,
    "l": 54.706
  },
  "oklch": {
    "l": 0.54337,
    "c": 0.15553,
    "h": 270.3
  },
  "luminance": 0.15339
}

Semantic roles & 50–950 ramp

primary

#4E66C9

secondary

#D3C99F

accent

#C04BDD

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4E66C9

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

Preview Lab → · Contrast checker → · Palette generator →