#4B78DC#4B78DC

#4B78DC is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.1% C 0.160 H 263.9°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#4B78DC
RGB	rgb(75, 120, 220)
HSL	hsl(221, 67%, 58%)
HSV	hsv(221, 66%, 86%)
CMYK	cmyk(65.9%, 45.5%, 0%, 13.7%)
CIE-LAB	lab(51.94, 16.59, -55.79)
CIE-LCH	lch(51.94, 58.20, 286.56°)
OKLab	oklab(59.14% -0.0169 -0.1596)
OKLCH	oklch(59.14% 0.16 263.9)
XYZ	xyz(22.5319, 20.0939, 70.3874)
Luminance	0.2010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78DC #DCAF4B

analogous

#4BC1DC #4B78DC #664BDC

triadic

#4B78DC #DC4B78 #78DC4B

tetradic

#4B78DC #DC4BC1 #DCAF4B #4BDC66

square

#4B78DC #DC4BC1 #DCAF4B #4BDC66

split-complementary

#4B78DC #DC664B #C1DC4B

monochromatic

#1C4091 #2657C4 #4B78DC #7E9EE6 #B1C5F0

Accessibility & contrast

On white

4.18

#4B78DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#4B78DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78DC

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78DC	#FFFFFF	#000000	##000000
##4B78DC	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4683E0

Deuteranopia (green-blind)

#2B76DA

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4b78dc;
/* rgb */ color: rgb(75, 120, 220);
/* oklch */ color: oklch(59.1% 0.160 263.9);

Tailwind

colors: {
  custom: {
    50: '#8c9ee7',
    500: '#4b78dc',
    950: '#000000',
  },
}

SCSS

$custom: #4b78dc;
$custom-light: #8c9ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78dc",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 220
  },
  "hsl": {
    "h": 221.379,
    "s": 67.442,
    "l": 57.843
  },
  "oklch": {
    "l": 0.59136,
    "c": 0.16047,
    "h": 263.9
  },
  "luminance": 0.20096
}

Semantic roles & 50–950 ramp

primary

#4B78DC

secondary

#DECCA4

accent

#B53DEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4B78DC

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

Preview Lab → · Contrast checker → · Palette generator →