#5172CA#5172CA

#5172CA is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.0% C 0.141 H 266.5°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#5172CA
RGB	rgb(81, 114, 202)
HSL	hsl(224, 53%, 55%)
HSV	hsv(224, 60%, 79%)
CMYK	cmyk(59.9%, 43.6%, 0%, 20.8%)
CIE-LAB	lab(49.55, 15.18, -49.38)
CIE-LCH	lch(49.55, 51.66, 287.09°)
OKLab	oklab(57.04% -0.0086 -0.1407)
OKLCH	oklch(57.04% 0.141 266.5)
XYZ	xyz(20.0677, 18.0465, 58.2915)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172CA #CAA951

analogous

#51AFCA #5172CA #6C51CA

triadic

#5172CA #CA5172 #72CA51

tetradic

#5172CA #CA51AF #CAA951 #51CA6C

square

#5172CA #CA51AF #CAA951 #51CA6C

split-complementary

#5172CA #CA6C51 #AFCA51

monochromatic

#253D7B #3454AA #5172CA #8098D8 #AFBEE7

Accessibility & contrast

On white

4.56

#5172CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#5172CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5172CA

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172CA	#FFFFFF	#000000	##000000
##5172CA	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7CCD

Deuteranopia (green-blind)

#3971C8

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5172ca;
/* rgb */ color: rgb(81, 114, 202);
/* oklch */ color: oklch(57.0% 0.141 266.5);

Tailwind

colors: {
  custom: {
    50: '#8c9ada',
    500: '#5172ca',
    950: '#000000',
  },
}

SCSS

$custom: #5172ca;
$custom-light: #8c9ada;
$custom-dark: #000000;

JSON

{
  "hex": "#5172ca",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 202
  },
  "hsl": {
    "h": 223.636,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.57041,
    "c": 0.14095,
    "h": 266.5
  },
  "luminance": 0.18048
}

Semantic roles & 50–950 ramp

primary

#5172CA

secondary

#D5C7A2

accent

#B54BDD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5172CA

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

Preview Lab → · Contrast checker → · Palette generator →