#4F78CF#4F78CF

#4F78CF is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.5% C 0.141 H 263.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4F78CF
RGB	rgb(79, 120, 207)
HSL	hsl(221, 57%, 56%)
HSV	hsv(221, 62%, 81%)
CMYK	cmyk(61.8%, 42%, 0%, 18.8%)
CIE-LAB	lab(51.38, 12.79, -49.32)
CIE-LCH	lch(51.38, 50.95, 284.54°)
OKLab	oklab(58.51% -0.0157 -0.1405)
OKLCH	oklch(58.51% 0.141 263.6)
XYZ	xyz(21.1995, 19.5983, 61.6851)
Luminance	0.1960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78CF #CFA64F

analogous

#4FB8CF #4F78CF #664FCF

triadic

#4F78CF #CF4F78 #78CF4F

tetradic

#4F78CF #CF4FB8 #CFA64F #4FCF66

square

#4F78CF #CF4FB8 #CFA64F #4FCF66

split-complementary

#4F78CF #CF664F #B8CF4F

monochromatic

#234181 #3059B1 #4F78CF #7F9DDC #AFC2E9

Accessibility & contrast

On white

4.27

#4F78CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#4F78CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78CF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78CF	#FFFFFF	#000000	##000000
##4F78CF	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5181D2

Deuteranopia (green-blind)

#3E75CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4f78cf;
/* rgb */ color: rgb(79, 120, 207);
/* oklch */ color: oklch(58.5% 0.141 263.6);

Tailwind

colors: {
  custom: {
    50: '#8b9ede',
    500: '#4f78cf',
    950: '#000000',
  },
}

SCSS

$custom: #4f78cf;
$custom-light: #8b9ede;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78cf",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 220.781,
    "s": 57.143,
    "l": 56.078
  },
  "oklch": {
    "l": 0.58511,
    "c": 0.14137,
    "h": 263.6
  },
  "luminance": 0.196
}

Semantic roles & 50–950 ramp

primary

#4F78CF

secondary

#D7C6A2

accent

#AF47E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4F78CF

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

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