#5164BB#5164BB

#5164BB is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.2% C 0.137 H 271.7°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#5164BB
RGB	rgb(81, 100, 187)
HSL	hsl(229, 44%, 53%)
HSV	hsv(229, 57%, 73%)
CMYK	cmyk(56.7%, 46.5%, 0%, 26.7%)
CIE-LAB	lab(44.87, 18.88, -48.21)
CIE-LCH	lch(44.87, 51.77, 291.38°)
OKLab	oklab(53.18% 0.0042 -0.1374)
OKLCH	oklch(53.18% 0.137 271.7)
XYZ	xyz(16.9172, 14.4503, 48.9018)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5164BB #BBA851

analogous

#5199BB #5164BB #7351BB

triadic

#5164BB #BB5164 #64BB51

tetradic

#5164BB #BB5199 #BBA851 #51BB73

square

#5164BB #BB5199 #BBA851 #51BB73

split-complementary

#5164BB #BB7351 #99BB51

monochromatic

#293469 #3A4A95 #5164BB #7D8BCC #A9B2DD

Accessibility & contrast

On white

5.40

#5164BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#5164BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5164BB

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5164BB	#FFFFFF	#000000	##FFFFFF
##5164BB	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6FBE

Deuteranopia (green-blind)

#2D66B9

Tritanopia (blue-blind)

#0F7786

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5164bb;
/* rgb */ color: rgb(81, 100, 187);
/* oklch */ color: oklch(53.2% 0.137 271.7);

Tailwind

colors: {
  custom: {
    50: '#8a8fd0',
    500: '#5164bb',
    950: '#000000',
  },
}

SCSS

$custom: #5164bb;
$custom-light: #8a8fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5164bb",
  "rgb": {
    "r": 81,
    "g": 100,
    "b": 187
  },
  "hsl": {
    "h": 229.245,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.53176,
    "c": 0.13749,
    "h": 271.7
  },
  "luminance": 0.14452
}

Semantic roles & 50–950 ramp

primary

#5164BB

secondary

#CBC39D

accent

#BD54D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #5164BB

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

Preview Lab → · Contrast checker → · Palette generator →