#4B78D8#4B78D8

#4B78D8 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.9% C 0.155 H 263.5°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#4B78D8
RGB	rgb(75, 120, 216)
HSL	hsl(221, 64%, 57%)
HSV	hsv(221, 65%, 85%)
CMYK	cmyk(65.3%, 44.4%, 0%, 15.3%)
CIE-LAB	lab(51.71, 15.20, -53.91)
CIE-LCH	lch(51.71, 56.01, 285.74°)
OKLab	oklab(58.88% -0.0176 -0.154)
OKLCH	oklch(58.88% 0.155 263.5)
XYZ	xyz(22.0084, 19.8846, 67.6307)
Luminance	0.1989 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78D8 #D8AB4B

analogous

#4BBFD8 #4B78D8 #654BD8

triadic

#4B78D8 #D84B78 #78D84B

tetradic

#4B78D8 #D84BBF #D8AB4B #4BD865

square

#4B78D8 #D84BBF #D8AB4B #4BD865

split-complementary

#4B78D8 #D8654B #BFD84B

monochromatic

#1E418B #2958BD #4B78D8 #7D9EE3 #B0C3EE

Accessibility & contrast

On white

4.22

#4B78D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#4B78D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78D8

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78D8	#FFFFFF	#000000	##000000
##4B78D8	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A82DC

Deuteranopia (green-blind)

#3175D6

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4b78d8;
/* rgb */ color: rgb(75, 120, 216);
/* oklch */ color: oklch(58.9% 0.155 263.5);

Tailwind

colors: {
  custom: {
    50: '#8b9ee4',
    500: '#4b78d8',
    950: '#000000',
  },
}

SCSS

$custom: #4b78d8;
$custom-light: #8b9ee4;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78d8",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 216
  },
  "hsl": {
    "h": 220.851,
    "s": 64.384,
    "l": 57.059
  },
  "oklch": {
    "l": 0.58877,
    "c": 0.15504,
    "h": 263.5
  },
  "luminance": 0.19887
}

Semantic roles & 50–950 ramp

primary

#4B78D8

secondary

#DCCAA3

accent

#B240E7

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4B78D8

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

Preview Lab → · Contrast checker → · Palette generator →