#4F78EB#4F78EB

#4F78EB is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.3% C 0.179 H 266.3°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#4F78EB
RGB	rgb(79, 120, 235)
HSL	hsl(224, 80%, 62%)
HSV	hsv(224, 66%, 92%)
CMYK	cmyk(66.4%, 48.9%, 0%, 7.8%)
CIE-LAB	lab(53.05, 22.44, -62.42)
CIE-LCH	lch(53.05, 66.33, 289.77°)
OKLab	oklab(60.33% -0.0115 -0.179)
OKLCH	oklch(60.33% 0.179 266.3)
XYZ	xyz(24.9311, 21.0910, 81.3382)
Luminance	0.2109 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78EB #EBC24F

analogous

#4FC6EB #4F78EB #744FEB

triadic

#4F78EB #EB4F78 #78EB4F

tetradic

#4F78EB #EB4FC6 #EBC24F #4FEB74

square

#4F78EB #EB4FC6 #EBC24F #4FEB74

split-complementary

#4F78EB #EB744F #C6EB4F

monochromatic

#143CAC #1A4FE3 #4F78EB #86A2F1 #BDCCF7

Accessibility & contrast

On white

4.02

#4F78EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#4F78EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78EB

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78EB	#FFFFFF	#000000	##000000
##4F78EB	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3886EF

Deuteranopia (green-blind)

#0378E9

Tritanopia (blue-blind)

#0093A6

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4f78eb;
/* rgb */ color: rgb(79, 120, 235);
/* oklch */ color: oklch(60.3% 0.179 266.3);

Tailwind

colors: {
  custom: {
    50: '#909ef2',
    500: '#4f78eb',
    950: '#000000',
  },
}

SCSS

$custom: #4f78eb;
$custom-light: #909ef2;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78eb",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 235
  },
  "hsl": {
    "h": 224.231,
    "s": 79.592,
    "l": 61.569
  },
  "oklch": {
    "l": 0.60327,
    "c": 0.17938,
    "h": 266.3
  },
  "luminance": 0.21093
}

Semantic roles & 50–950 ramp

primary

#4F78EB

secondary

#E8D9AE

accent

#A50ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4F78EB

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

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