#4F78E5#4F78E5

#4F78E5 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.9% C 0.171 H 265.9°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4F78E5
RGB	rgb(79, 120, 229)
HSL	hsl(224, 74%, 60%)
HSV	hsv(224, 66%, 90%)
CMYK	cmyk(65.5%, 47.6%, 0%, 10.2%)
CIE-LAB	lab(52.67, 20.36, -59.66)
CIE-LCH	lch(52.67, 63.04, 288.84°)
OKLab	oklab(59.92% -0.0122 -0.1709)
OKLCH	oklch(59.92% 0.171 265.9)
XYZ	xyz(24.0789, 20.7501, 76.8498)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78E5 #E5BC4F

analogous

#4FC3E5 #4F78E5 #714FE5

triadic

#4F78E5 #E54F78 #78E54F

tetradic

#4F78E5 #E54FC3 #E5BC4F #4FE571

square

#4F78E5 #E54FC3 #E5BC4F #4FE571

split-complementary

#4F78E5 #E5714F #C3E54F

monochromatic

#183EA2 #2052D7 #4F78E5 #84A1ED #BACAF5

Accessibility & contrast

On white

4.08

#4F78E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#4F78E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78E5

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78E5	#FFFFFF	#000000	##000000
##4F78E5	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F85E9

Deuteranopia (green-blind)

#1C77E3

Tritanopia (blue-blind)

#0091A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4f78e5;
/* rgb */ color: rgb(79, 120, 229);
/* oklch */ color: oklch(59.9% 0.171 265.9);

Tailwind

colors: {
  custom: {
    50: '#8f9eee',
    500: '#4f78e5',
    950: '#000000',
  },
}

SCSS

$custom: #4f78e5;
$custom-light: #8f9eee;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78e5",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 229
  },
  "hsl": {
    "h": 223.6,
    "s": 74.257,
    "l": 60.392
  },
  "oklch": {
    "l": 0.59922,
    "c": 0.17133,
    "h": 265.9
  },
  "luminance": 0.20752
}

Semantic roles & 50–950 ramp

primary

#4F78E5

secondary

#E5D5AB

accent

#A00FD6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #4F78E5

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

Preview Lab → · Contrast checker → · Palette generator →