#4F78BD#4F78BD

#4F78BD is a mid, moderate blue. Relative luminance 0.188; OKLCH L 57.4% C 0.117 H 260.3°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4F78BD
RGB	rgb(79, 120, 189)
HSL	hsl(218, 45%, 53%)
HSV	hsv(218, 58%, 74%)
CMYK	cmyk(58.2%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(50.41, 6.71, -40.56)
CIE-LCH	lch(50.41, 41.11, 279.40°)
OKLab	oklab(57.45% -0.0196 -0.1148)
OKLCH	oklch(57.45% 0.117 260.3)
XYZ	xyz(19.1230, 18.7677, 50.7490)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78BD #BD944F

analogous

#4FAFBD #4F78BD #5D4FBD

triadic

#4F78BD #BD4F78 #78BD4F

tetradic

#4F78BD #BD4FAF #BD944F #4FBD5D

square

#4F78BD #BD4FAF #BD944F #4FBD5D

split-complementary

#4F78BD #BD5D4F #AFBD4F

monochromatic

#28406A #385B96 #4F78BD #7C9ACE #A8BCDE

Accessibility & contrast

On white

4.42

#4F78BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4F78BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78BD

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78BD	#FFFFFF	#000000	##000000
##4F78BD	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7EC0

Deuteranopia (green-blind)

#4D73BC

Tritanopia (blue-blind)

#008791

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4f78bd;
/* rgb */ color: rgb(79, 120, 189);
/* oklch */ color: oklch(57.4% 0.117 260.3);

Tailwind

colors: {
  custom: {
    50: '#899ed1',
    500: '#4f78bd',
    950: '#000000',
  },
}

SCSS

$custom: #4f78bd;
$custom-light: #899ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78bd",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 217.636,
    "s": 45.455,
    "l": 52.549
  },
  "oklch": {
    "l": 0.57449,
    "c": 0.11652,
    "h": 260.3
  },
  "luminance": 0.18769
}

Semantic roles & 50–950 ramp

primary

#4F78BD

secondary

#CCBA9C

accent

#A553D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4F78BD

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

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