#4E66CB#4E66CB

#4E66CB is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.5% C 0.158 H 270.3°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#4E66CB
RGB	rgb(78, 102, 203)
HSL	hsl(228, 55%, 55%)
HSV	hsv(228, 62%, 80%)
CMYK	cmyk(61.6%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(46.22, 22.45, -55.30)
CIE-LCH	lch(46.22, 59.68, 292.10°)
OKLab	oklab(54.47% 0.0009 -0.1583)
OKLCH	oklch(54.47% 0.158 270.3)
XYZ	xyz(18.6691, 15.4327, 58.4833)
Luminance	0.1543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E66CB #CBB34E

analogous

#4EA4CB #4E66CB #744ECB

triadic

#4E66CB #CB4E66 #66CB4E

tetradic

#4E66CB #CB4EA4 #CBB34E #4ECB74

square

#4E66CB #CB4EA4 #CBB34E #4ECB74

split-complementary

#4E66CB #CB744E #A4CB4E

monochromatic

#24357B #3249AA #4E66CB #7D8FD9 #ADB8E7

Accessibility & contrast

On white

5.14

#4E66CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#4E66CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E66CB

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E66CB	#FFFFFF	#000000	##FFFFFF
##4E66CB	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3073CF

Deuteranopia (green-blind)

#1268C9

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4e66cb;
/* rgb */ color: rgb(78, 102, 203);
/* oklch */ color: oklch(54.5% 0.158 270.3);

Tailwind

colors: {
  custom: {
    50: '#8b91db',
    500: '#4e66cb',
    950: '#000000',
  },
}

SCSS

$custom: #4e66cb;
$custom-light: #8b91db;
$custom-dark: #000000;

JSON

{
  "hex": "#4e66cb",
  "rgb": {
    "r": 78,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 228.48,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.54474,
    "c": 0.15831,
    "h": 270.3
  },
  "luminance": 0.15434
}

Semantic roles & 50–950 ramp

primary

#4E66CB

secondary

#D5CBA0

accent

#C24ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4E66CB

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

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