#5170BE#5170BE

#5170BE is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.9% C 0.127 H 266.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#5170BE
RGB	rgb(81, 112, 190)
HSL	hsl(223, 46%, 53%)
HSV	hsv(223, 57%, 75%)
CMYK	cmyk(57.4%, 41.1%, 0%, 25.5%)
CIE-LAB	lab(48.33, 12.38, -44.44)
CIE-LCH	lch(48.33, 46.13, 285.57°)
OKLab	oklab(55.88% -0.0086 -0.1262)
OKLCH	oklch(55.88% 0.127 266.1)
XYZ	xyz(18.4786, 17.0539, 51.0232)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170BE #BE9F51

analogous

#51A6BE #5170BE #6851BE

triadic

#5170BE #BE5170 #70BE51

tetradic

#5170BE #BE51A6 #BE9F51 #51BE68

square

#5170BE #BE51A6 #BE9F51 #51BE68

split-complementary

#5170BE #BE6851 #A6BE51

monochromatic

#283C6C #395499 #5170BE #7E95CF #AAB9DF

Accessibility & contrast

On white

4.76

#5170BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#5170BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5170BE

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170BE	#FFFFFF	#000000	##FFFFFF
##5170BE	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F78C1

Deuteranopia (green-blind)

#416EBC

Tritanopia (blue-blind)

#00818E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5170be;
/* rgb */ color: rgb(81, 112, 190);
/* oklch */ color: oklch(55.9% 0.127 266.1);

Tailwind

colors: {
  custom: {
    50: '#8a98d2',
    500: '#5170be',
    950: '#000000',
  },
}

SCSS

$custom: #5170be;
$custom-light: #8a98d2;
$custom-dark: #000000;

JSON

{
  "hex": "#5170be",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 190
  },
  "hsl": {
    "h": 222.936,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.5588,
    "c": 0.12653,
    "h": 266.1
  },
  "luminance": 0.17055
}

Semantic roles & 50–950 ramp

primary

#5170BE

secondary

#CDC09E

accent

#B053D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0D14

muted

#7D7E82

Preview Lab

Preview with #5170BE

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

Preview Lab → · Contrast checker → · Palette generator →