#5B78BB#5B78BB

#5B78BB is a mid, moderate blue. Relative luminance 0.192; OKLCH L 58.0% C 0.109 H 265.4°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#5B78BB
RGB	rgb(91, 120, 187)
HSL	hsl(222, 41%, 55%)
HSV	hsv(222, 51%, 73%)
CMYK	cmyk(51.3%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(50.97, 8.71, -38.49)
CIE-LCH	lch(50.97, 39.46, 282.76°)
OKLab	oklab(58.02% -0.0087 -0.1086)
OKLCH	oklch(58.02% 0.109 265.4)
XYZ	xyz(19.9975, 19.2436, 49.6647)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B78BB #BB9E5B

analogous

#5BA8BB #5B78BB #6E5BBB

triadic

#5B78BB #BB5B78 #78BB5B

tetradic

#5B78BB #BB5BA8 #BB9E5B #5BBB6E

square

#5B78BB #BB5BA8 #BB9E5B #5BBB6E

split-complementary

#5B78BB #BB6E5B #A8BB5B

monochromatic

#2E416E #405B99 #5B78BB #869CCD #B2BFDF

Accessibility & contrast

On white

4.33

#5B78BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#5B78BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B78BB

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B78BB	#FFFFFF	#000000	##000000
##5B78BB	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#5375BA

Tritanopia (blue-blind)

#2F8691

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5b78bb;
/* rgb */ color: rgb(91, 120, 187);
/* oklch */ color: oklch(58.0% 0.109 265.4);

Tailwind

colors: {
  custom: {
    50: '#8f9ed0',
    500: '#5b78bb',
    950: '#000000',
  },
}

SCSS

$custom: #5b78bb;
$custom-light: #8f9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b78bb",
  "rgb": {
    "r": 91,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 221.875,
    "s": 41.379,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58023,
    "c": 0.10894,
    "h": 265.4
  },
  "luminance": 0.19245
}

Semantic roles & 50–950 ramp

primary

#5B78BB

secondary

#CDC1A5

accent

#AC57D1

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #5B78BB

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

Preview Lab → · Contrast checker → · Palette generator →