#4F78DC#4F78DC

#4F78DC is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.3% C 0.159 H 265.1°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#4F78DC
RGB	rgb(79, 120, 220)
HSL	hsl(223, 67%, 59%)
HSV	hsv(223, 64%, 86%)
CMYK	cmyk(64.1%, 45.5%, 0%, 13.7%)
CIE-LAB	lab(52.13, 17.25, -55.48)
CIE-LCH	lch(52.13, 58.10, 287.28°)
OKLab	oklab(59.33% -0.0135 -0.1586)
OKLCH	oklch(59.33% 0.159 265.1)
XYZ	xyz(22.8547, 20.2604, 70.4025)
Luminance	0.2026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78DC #DCB34F

analogous

#4FBEDC #4F78DC #6C4FDC

triadic

#4F78DC #DC4F78 #78DC4F

tetradic

#4F78DC #DC4FBE #DCB34F #4FDC6C

square

#4F78DC #DC4FBE #DCB34F #4FDC6C

split-complementary

#4F78DC #DC6C4F #BEDC4F

monochromatic

#1D4093 #2756C6 #4F78DC #829FE6 #B5C6F0

Accessibility & contrast

On white

4.16

#4F78DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#4F78DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78DC

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78DC	#FFFFFF	#000000	##000000
##4F78DC	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4783E0

Deuteranopia (green-blind)

#2E76DA

Tritanopia (blue-blind)

#008F9F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4f78dc;
/* rgb */ color: rgb(79, 120, 220);
/* oklch */ color: oklch(59.3% 0.159 265.1);

Tailwind

colors: {
  custom: {
    50: '#8e9ee7',
    500: '#4f78dc',
    950: '#000000',
  },
}

SCSS

$custom: #4f78dc;
$custom-light: #8e9ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78dc",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 220
  },
  "hsl": {
    "h": 222.553,
    "s": 66.825,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5933,
    "c": 0.15915,
    "h": 265.1
  },
  "luminance": 0.20263
}

Semantic roles & 50–950 ramp

primary

#4F78DC

secondary

#DFCFA8

accent

#B83EEA

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4F78DC

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

Preview Lab → · Contrast checker → · Palette generator →