#5B78EB#5B78EB

#5B78EB is a mid, vivid blue. Relative luminance 0.217; OKLCH L 61.0% C 0.176 H 269.9°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#5B78EB
RGB	rgb(91, 120, 235)
HSL	hsl(228, 78%, 64%)
HSV	hsv(228, 61%, 92%)
CMYK	cmyk(61.3%, 48.9%, 0%, 7.8%)
CIE-LAB	lab(53.66, 24.42, -61.41)
CIE-LCH	lch(53.66, 66.09, 291.68°)
OKLab	oklab(60.95% -0.0004 -0.1758)
OKLCH	oklch(60.95% 0.176 269.9)
XYZ	xyz(26.0212, 21.6530, 81.3893)
Luminance	0.2165 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B78EB #EBCE5B

analogous

#5BC0EB #5B78EB #865BEB

triadic

#5B78EB #EB5B78 #78EB5B

tetradic

#5B78EB #EB5BC0 #EBCE5B #5BEB86

square

#5B78EB #EB5BC0 #EBCE5B #5BEB86

split-complementary

#5B78EB #EB865B #C0EB5B

monochromatic

#1636B5 #244BE4 #5B78EB #92A5F2 #C8D2F8

Accessibility & contrast

On white

3.94

#5B78EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#5B78EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B78EB

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B78EB	#FFFFFF	#000000	##000000
##5B78EB	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B87EF

Deuteranopia (green-blind)

#1B7AE9

Tritanopia (blue-blind)

#0092A6

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5b78eb;
/* rgb */ color: rgb(91, 120, 235);
/* oklch */ color: oklch(61.0% 0.176 269.9);

Tailwind

colors: {
  custom: {
    50: '#969ef2',
    500: '#5b78eb',
    950: '#000000',
  },
}

SCSS

$custom: #5b78eb;
$custom-light: #969ef2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b78eb",
  "rgb": {
    "r": 91,
    "g": 120,
    "b": 235
  },
  "hsl": {
    "h": 227.917,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.60953,
    "c": 0.17579,
    "h": 269.9
  },
  "luminance": 0.21655
}

Semantic roles & 50–950 ramp

primary

#5B78EB

secondary

#EAE0B8

accent

#B10BDB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E17

muted

#7E7E85

Preview Lab

Preview with #5B78EB

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

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