#5378BB#5378BB

#5378BB is a mid, moderate blue. Relative luminance 0.189; OKLCH L 57.6% C 0.112 H 261.6°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5378BB
RGB	rgb(83, 120, 187)
HSL	hsl(219, 43%, 53%)
HSV	hsv(219, 56%, 73%)
CMYK	cmyk(55.6%, 35.8%, 0%, 26.7%)
CIE-LAB	lab(50.52, 6.90, -39.23)
CIE-LCH	lch(50.52, 39.83, 279.98°)
OKLab	oklab(57.55% -0.0165 -0.1109)
OKLCH	oklch(57.55% 0.112 261.6)
XYZ	xyz(19.2503, 18.8583, 49.6297)
Luminance	0.1886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5378BB #BB9653

analogous

#53ACBB #5378BB #6253BB

triadic

#5378BB #BB5378 #78BB53

tetradic

#5378BB #BB53AC #BB9653 #53BB62

square

#5378BB #BB53AC #BB9653 #53BB62

split-complementary

#5378BB #BB6253 #ACBB53

monochromatic

#2A416A #3B5B96 #5378BB #7F9ACC #ABBDDE

Accessibility & contrast

On white

4.40

#5378BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#5378BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5378BB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5378BB	#FFFFFF	#000000	##000000
##5378BB	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7EBE

Deuteranopia (green-blind)

#5074BA

Tritanopia (blue-blind)

#108791

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5378bb;
/* rgb */ color: rgb(83, 120, 187);
/* oklch */ color: oklch(57.6% 0.112 261.6);

Tailwind

colors: {
  custom: {
    50: '#8b9ed0',
    500: '#5378bb',
    950: '#000000',
  },
}

SCSS

$custom: #5378bb;
$custom-light: #8b9ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#5378bb",
  "rgb": {
    "r": 83,
    "g": 120,
    "b": 187
  },
  "hsl": {
    "h": 218.654,
    "s": 43.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.57554,
    "c": 0.1121,
    "h": 261.6
  },
  "luminance": 0.1886
}

Semantic roles & 50–950 ramp

primary

#5378BB

secondary

#CBBB9E

accent

#A655D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5378BB

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

Preview Lab → · Contrast checker → · Palette generator →