#4F78DF#4F78DF

#4F78DF is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.5% C 0.163 H 265.4°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#4F78DF
RGB	rgb(79, 120, 223)
HSL	hsl(223, 69%, 59%)
HSV	hsv(223, 65%, 87%)
CMYK	cmyk(64.6%, 46.2%, 0%, 12.5%)
CIE-LAB	lab(52.31, 18.29, -56.88)
CIE-LCH	lch(52.31, 59.75, 287.83°)
OKLab	oklab(59.52% -0.013 -0.1627)
OKLCH	oklch(59.52% 0.163 265.4)
XYZ	xyz(23.2556, 20.4207, 72.5138)
Luminance	0.2042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78DF #DFB64F

analogous

#4FC0DF #4F78DF #6E4FDF

triadic

#4F78DF #DF4F78 #78DF4F

tetradic

#4F78DF #DF4FC0 #DFB64F #4FDF6E

square

#4F78DF #DF4FC0 #DFB64F #4FDF6E

split-complementary

#4F78DF #DF6E4F #C0DF4F

monochromatic

#1C3F98 #2555CC #4F78DF #83A0E8 #B7C7F2

Accessibility & contrast

On white

4.13

#4F78DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#4F78DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78DF

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78DF	#FFFFFF	#000000	##000000
##4F78DF	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4484E3

Deuteranopia (green-blind)

#2977DD

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4f78df;
/* rgb */ color: rgb(79, 120, 223);
/* oklch */ color: oklch(59.5% 0.163 265.4);

Tailwind

colors: {
  custom: {
    50: '#8e9ee9',
    500: '#4f78df',
    950: '#000000',
  },
}

SCSS

$custom: #4f78df;
$custom-light: #8e9ee9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78df",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 223
  },
  "hsl": {
    "h": 222.917,
    "s": 69.231,
    "l": 59.216
  },
  "oklch": {
    "l": 0.59525,
    "c": 0.16323,
    "h": 265.4
  },
  "luminance": 0.20423
}

Semantic roles & 50–950 ramp

primary

#4F78DF

secondary

#E1D1A9

accent

#BA3CEC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4F78DF

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

Preview Lab → · Contrast checker → · Palette generator →