#5172B0#5172B0

#5172B0 is a mid, moderate blue. Relative luminance 0.169; OKLCH L 55.5% C 0.104 H 262.2°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#5172B0
RGB	rgb(81, 114, 176)
HSL	hsl(219, 38%, 50%)
HSV	hsv(219, 54%, 69%)
CMYK	cmyk(54%, 35.2%, 0%, 31%)
CIE-LAB	lab(48.16, 6.52, -36.60)
CIE-LCH	lch(48.16, 37.18, 280.11°)
OKLab	oklab(55.51% -0.0141 -0.1033)
OKLCH	oklch(55.51% 0.104 262.2)
XYZ	xyz(17.2445, 16.9173, 43.4225)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172B0 #B08F51

analogous

#51A1B0 #5172B0 #6051B0

triadic

#5172B0 #B05172 #72B051

tetradic

#5172B0 #B051A1 #B08F51 #51B060

square

#5172B0 #B051A1 #B08F51 #51B060

split-complementary

#5172B0 #B06051 #A1B051

monochromatic

#2A3C5D #3D5787 #5172B0 #7B94C3 #A5B6D6

Accessibility & contrast

On white

4.79

#5172B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#5172B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5172B0

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172B0	#FFFFFF	#000000	##FFFFFF
##5172B0	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5977B3

Deuteranopia (green-blind)

#4E6EAF

Tritanopia (blue-blind)

#1E8089

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5172b0;
/* rgb */ color: rgb(81, 114, 176);
/* oklch */ color: oklch(55.5% 0.104 262.2);

Tailwind

colors: {
  custom: {
    50: '#889ac8',
    500: '#5172b0',
    950: '#000000',
  },
}

SCSS

$custom: #5172b0;
$custom-light: #889ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#5172b0",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 176
  },
  "hsl": {
    "h": 219.158,
    "s": 37.549,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55507,
    "c": 0.10428,
    "h": 262.2
  },
  "luminance": 0.16919
}

Semantic roles & 50–950 ramp

primary

#5172B0

secondary

#C4B599

accent

#A55ACE

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #5172B0

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

Preview Lab → · Contrast checker → · Palette generator →