#5172BD#5172BD

#5172BD is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.3% C 0.123 H 264.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#5172BD
RGB	rgb(81, 114, 189)
HSL	hsl(222, 45%, 53%)
HSV	hsv(222, 57%, 74%)
CMYK	cmyk(57.1%, 39.7%, 0%, 25.9%)
CIE-LAB	lab(48.83, 10.81, -43.06)
CIE-LCH	lch(48.83, 44.40, 284.09°)
OKLab	oklab(56.25% -0.0111 -0.1222)
OKLCH	oklch(56.25% 0.123 264.8)
XYZ	xyz(18.5928, 17.4566, 50.5239)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172BD #BD9C51

analogous

#51A8BD #5172BD #6651BD

triadic

#5172BD #BD5172 #72BD51

tetradic

#5172BD #BD51A8 #BD9C51 #51BD66

square

#5172BD #BD51A8 #BD9C51 #51BD66

split-complementary

#5172BD #BD6651 #A8BD51

monochromatic

#293D6B #395697 #5172BD #7D96CE #AABADF

Accessibility & contrast

On white

4.68

#5172BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#5172BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5172BD

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172BD	#FFFFFF	#000000	##FFFFFF
##5172BD	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279C0

Deuteranopia (green-blind)

#456FBB

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5172bd;
/* rgb */ color: rgb(81, 114, 189);
/* oklch */ color: oklch(56.3% 0.123 264.8);

Tailwind

colors: {
  custom: {
    50: '#8a9ad1',
    500: '#5172bd',
    950: '#000000',
  },
}

SCSS

$custom: #5172bd;
$custom-light: #8a9ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#5172bd",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 189
  },
  "hsl": {
    "h": 221.667,
    "s": 45,
    "l": 52.941
  },
  "oklch": {
    "l": 0.5625,
    "c": 0.12268,
    "h": 264.8
  },
  "luminance": 0.17458
}

Semantic roles & 50–950 ramp

primary

#5172BD

secondary

#CCBE9E

accent

#AD53D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5172BD

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

Preview Lab → · Contrast checker → · Palette generator →