#4F78E4#4F78E4

#4F78E4 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.9% C 0.170 H 265.8°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#4F78E4
RGB	rgb(79, 120, 228)
HSL	hsl(223, 73%, 60%)
HSV	hsv(223, 65%, 89%)
CMYK	cmyk(65.4%, 47.4%, 0%, 10.6%)
CIE-LAB	lab(52.61, 20.02, -59.20)
CIE-LCH	lch(52.61, 62.50, 288.68°)
OKLab	oklab(59.86% -0.0123 -0.1695)
OKLCH	oklch(59.86% 0.17 265.8)
XYZ	xyz(23.9397, 20.6944, 76.1165)
Luminance	0.2070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78E4 #E4BB4F

analogous

#4FC2E4 #4F78E4 #704FE4

triadic

#4F78E4 #E44F78 #78E44F

tetradic

#4F78E4 #E44FC2 #E4BB4F #4FE470

square

#4F78E4 #E44FC2 #E4BB4F #4FE470

split-complementary

#4F78E4 #E4704F #C2E44F

monochromatic

#193EA0 #2152D5 #4F78E4 #84A1EC #B9C9F4

Accessibility & contrast

On white

4.09

#4F78E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#4F78E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78E4

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78E4	#FFFFFF	#000000	##000000
##4F78E4	1.00	4.09	5.14	5.14
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4085E8

Deuteranopia (green-blind)

#1F77E2

Tritanopia (blue-blind)

#0091A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4f78e4;
/* rgb */ color: rgb(79, 120, 228);
/* oklch */ color: oklch(59.9% 0.170 265.8);

Tailwind

colors: {
  custom: {
    50: '#8f9eed',
    500: '#4f78e4',
    950: '#000000',
  },
}

SCSS

$custom: #4f78e4;
$custom-light: #8f9eed;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78e4",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 228
  },
  "hsl": {
    "h": 223.49,
    "s": 73.399,
    "l": 60.196
  },
  "oklch": {
    "l": 0.59855,
    "c": 0.16999,
    "h": 265.8
  },
  "luminance": 0.20697
}

Semantic roles & 50–950 ramp

primary

#4F78E4

secondary

#E4D4AB

accent

#9F10D6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #4F78E4

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

Preview Lab → · Contrast checker → · Palette generator →