#4B78BD#4B78BD

#4B78BD is a mid, moderate blue. Relative luminance 0.186; OKLCH L 57.2% C 0.118 H 258.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4B78BD
RGB	rgb(75, 120, 189)
HSL	hsl(216, 46%, 52%)
HSV	hsv(216, 60%, 74%)
CMYK	cmyk(60.3%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(50.22, 5.91, -40.88)
CIE-LCH	lch(50.22, 41.31, 278.22°)
OKLab	oklab(57.24% -0.0232 -0.1159)
OKLCH	oklch(57.24% 0.118 258.7)
XYZ	xyz(18.8002, 18.6013, 50.7339)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78BD #BD904B

analogous

#4BB1BD #4B78BD #574BBD

triadic

#4B78BD #BD4B78 #78BD4B

tetradic

#4B78BD #BD4BB1 #BD904B #4BBD57

square

#4B78BD #BD4BB1 #BD904B #4BBD57

split-complementary

#4B78BD #BD574B #B1BD4B

monochromatic

#264068 #365C94 #4B78BD #789ACD #A5BBDE

Accessibility & contrast

On white

4.45

#4B78BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4B78BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78BD

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78BD	#FFFFFF	#000000	##000000
##4B78BD	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7DC0

Deuteranopia (green-blind)

#4C73BC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4b78bd;
/* rgb */ color: rgb(75, 120, 189);
/* oklch */ color: oklch(57.2% 0.118 258.7);

Tailwind

colors: {
  custom: {
    50: '#879ed1',
    500: '#4b78bd',
    950: '#000000',
  },
}

SCSS

$custom: #4b78bd;
$custom-light: #879ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78bd",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 216.316,
    "s": 46.341,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57242,
    "c": 0.11816,
    "h": 258.7
  },
  "luminance": 0.18603
}

Semantic roles & 50–950 ramp

primary

#4B78BD

secondary

#CBB799

accent

#A252D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4B78BD

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

Preview Lab → · Contrast checker → · Palette generator →