#5172BC#5172BC

#5172BC is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.2% C 0.121 H 264.7°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#5172BC
RGB	rgb(81, 114, 188)
HSL	hsl(221, 44%, 53%)
HSV	hsv(221, 57%, 74%)
CMYK	cmyk(56.9%, 39.4%, 0%, 26.3%)
CIE-LAB	lab(48.78, 10.48, -42.57)
CIE-LCH	lch(48.78, 43.84, 283.83°)
OKLab	oklab(56.19% -0.0113 -0.1207)
OKLCH	oklch(56.19% 0.121 264.7)
XYZ	xyz(18.4847, 17.4133, 49.9542)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172BC #BC9B51

analogous

#51A8BC #5172BC #6551BC

triadic

#5172BC #BC5172 #72BC51

tetradic

#5172BC #BC51A8 #BC9B51 #51BC65

square

#5172BC #BC51A8 #BC9B51 #51BC65

split-complementary

#5172BC #BC6551 #A8BC51

monochromatic

#293D6A #3A5696 #5172BC #7D96CD #A9BADE

Accessibility & contrast

On white

4.68

#5172BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#5172BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5172BC

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172BC	#FFFFFF	#000000	##FFFFFF
##5172BC	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BF

Deuteranopia (green-blind)

#466FBA

Tritanopia (blue-blind)

#02828E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #5172bc;
/* rgb */ color: rgb(81, 114, 188);
/* oklch */ color: oklch(56.2% 0.121 264.7);

Tailwind

colors: {
  custom: {
    50: '#8a9ad0',
    500: '#5172bc',
    950: '#000000',
  },
}

SCSS

$custom: #5172bc;
$custom-light: #8a9ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#5172bc",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 188
  },
  "hsl": {
    "h": 221.495,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.56191,
    "c": 0.12127,
    "h": 264.7
  },
  "luminance": 0.17415
}

Semantic roles & 50–950 ramp

primary

#5172BC

secondary

#CCBD9D

accent

#AD54D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5172BC

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

Preview Lab → · Contrast checker → · Palette generator →