#5172CC#5172CC

#5172CC is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.2% C 0.144 H 266.7°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#5172CC
RGB	rgb(81, 114, 204)
HSL	hsl(224, 55%, 56%)
HSV	hsv(224, 60%, 80%)
CMYK	cmyk(60.3%, 44.1%, 0%, 20%)
CIE-LAB	lab(49.67, 15.85, -50.33)
CIE-LCH	lch(49.67, 52.77, 287.48°)
OKLab	oklab(57.17% -0.0082 -0.1435)
OKLCH	oklch(57.17% 0.144 266.7)
XYZ	xyz(20.3060, 18.1419, 59.5467)
Luminance	0.1814 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172CC #CCAB51

analogous

#51B0CC #5172CC #6D51CC

triadic

#5172CC #CC5172 #72CC51

tetradic

#5172CC #CC51B0 #CCAB51 #51CC6D

square

#5172CC #CC51B0 #CCAB51 #51CC6D

split-complementary

#5172CC #CC6D51 #B0CC51

monochromatic

#253D7E #3354AD #5172CC #8098DA #B0BFE8

Accessibility & contrast

On white

4.54

#5172CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#5172CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5172CC

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172CC	#FFFFFF	#000000	##000000
##5172CC	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCF

Deuteranopia (green-blind)

#3671CA

Tritanopia (blue-blind)

#008695

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5172cc;
/* rgb */ color: rgb(81, 114, 204);
/* oklch */ color: oklch(57.2% 0.144 266.7);

Tailwind

colors: {
  custom: {
    50: '#8c9adc',
    500: '#5172cc',
    950: '#000000',
  },
}

SCSS

$custom: #5172cc;
$custom-light: #8c9adc;
$custom-dark: #000000;

JSON

{
  "hex": "#5172cc",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 204
  },
  "hsl": {
    "h": 223.902,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57166,
    "c": 0.14375,
    "h": 266.7
  },
  "luminance": 0.18144
}

Semantic roles & 50–950 ramp

primary

#5172CC

secondary

#D6C8A3

accent

#B64ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5172CC

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

Preview Lab → · Contrast checker → · Palette generator →