#5170AF#5170AF

#5170AF is a mid, moderate blue. Relative luminance 0.164; OKLCH L 55.0% C 0.105 H 263.4°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#5170AF
RGB	rgb(81, 112, 175)
HSL	hsl(220, 37%, 50%)
HSV	hsv(220, 54%, 69%)
CMYK	cmyk(53.7%, 36%, 0%, 31.4%)
CIE-LAB	lab(47.54, 7.42, -37.00)
CIE-LCH	lch(47.54, 37.73, 281.35°)
OKLab	oklab(55.01% -0.012 -0.1045)
OKLCH	oklch(55.01% 0.105 263.4)
XYZ	xyz(16.9228, 16.4316, 42.8290)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170AF #AF9051

analogous

#519FAF #5170AF #6151AF

triadic

#5170AF #AF5170 #70AF51

tetradic

#5170AF #AF519F #AF9051 #51AF61

square

#5170AF #AF519F #AF9051 #51AF61

split-complementary

#5170AF #AF6151 #9FAF51

monochromatic

#2A3A5C #3D5585 #5170AF #7B92C2 #A5B5D6

Accessibility & contrast

On white

4.90

#5170AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#5170AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5170AF

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170AF	#FFFFFF	#000000	##FFFFFF
##5170AF	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5775B2

Deuteranopia (green-blind)

#4C6DAE

Tritanopia (blue-blind)

#207E87

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5170af;
/* rgb */ color: rgb(81, 112, 175);
/* oklch */ color: oklch(55.0% 0.105 263.4);

Tailwind

colors: {
  custom: {
    50: '#8898c7',
    500: '#5170af',
    950: '#000000',
  },
}

SCSS

$custom: #5170af;
$custom-light: #8898c7;
$custom-dark: #000000;

JSON

{
  "hex": "#5170af",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 175
  },
  "hsl": {
    "h": 220.213,
    "s": 37.008,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55009,
    "c": 0.10517,
    "h": 263.4
  },
  "luminance": 0.16433
}

Semantic roles & 50–950 ramp

primary

#5170AF

secondary

#C3B599

accent

#A75BCD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0D13

muted

#7D7E82

Preview Lab

Preview with #5170AF

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

Preview Lab → · Contrast checker → · Palette generator →