#4D78CB#4D78CB

#4D78CB is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.137 H 262.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4D78CB
RGB	rgb(77, 120, 203)
HSL	hsl(220, 55%, 55%)
HSV	hsv(220, 62%, 80%)
CMYK	cmyk(62.1%, 40.9%, 0%, 20.4%)
CIE-LAB	lab(51.06, 11.06, -47.55)
CIE-LCH	lch(51.06, 48.82, 283.09°)
OKLab	oklab(58.17% -0.0183 -0.1354)
OKLCH	oklch(58.17% 0.137 262.3)
XYZ	xyz(20.5528, 19.3207, 59.1345)
Luminance	0.1932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D78CB #CBA04D

analogous

#4DB7CB #4D78CB #614DCB

triadic

#4D78CB #CB4D78 #78CB4D

tetradic

#4D78CB #CB4DB7 #CBA04D #4DCB61

square

#4D78CB #CB4DB7 #CBA04D #4DCB61

split-complementary

#4D78CB #CB614D #B7CB4D

monochromatic

#24417A #315AA9 #4D78CB #7C9CD9 #ACC0E7

Accessibility & contrast

On white

4.32

#4D78CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#4D78CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4D78CB

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D78CB	#FFFFFF	#000000	##000000
##4D78CB	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CE

Deuteranopia (green-blind)

#4174C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4d78cb;
/* rgb */ color: rgb(77, 120, 203);
/* oklch */ color: oklch(58.2% 0.137 262.3);

Tailwind

colors: {
  custom: {
    50: '#8a9edb',
    500: '#4d78cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d78cb;
$custom-light: #8a9edb;
$custom-dark: #000000;

JSON

{
  "hex": "#4d78cb",
  "rgb": {
    "r": 77,
    "g": 120,
    "b": 203
  },
  "hsl": {
    "h": 219.524,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58165,
    "c": 0.13659,
    "h": 262.3
  },
  "luminance": 0.19323
}

Semantic roles & 50–950 ramp

primary

#4D78CB

secondary

#D4C29F

accent

#AB4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4D78CB

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

Preview Lab → · Contrast checker → · Palette generator →