#5172CB#5172CB

#5172CB is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.1% C 0.142 H 266.6°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#5172CB
RGB	rgb(81, 114, 203)
HSL	hsl(224, 54%, 56%)
HSV	hsv(224, 60%, 80%)
CMYK	cmyk(60.1%, 43.8%, 0%, 20.4%)
CIE-LAB	lab(49.61, 15.51, -49.86)
CIE-LCH	lch(49.61, 52.21, 287.29°)
OKLab	oklab(57.1% -0.0084 -0.1421)
OKLCH	oklch(57.1% 0.142 266.6)
XYZ	xyz(20.1865, 18.0941, 58.9171)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5172CB #CBAA51

analogous

#51AFCB #5172CB #6D51CB

triadic

#5172CB #CB5172 #72CB51

tetradic

#5172CB #CB51AF #CBAA51 #51CB6D

square

#5172CB #CB51AF #CBAA51 #51CB6D

split-complementary

#5172CB #CB6D51 #AFCB51

monochromatic

#253D7C #3354AC #5172CB #8098D9 #AFBEE7

Accessibility & contrast

On white

4.55

#5172CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#5172CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5172CB

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5172CB	#FFFFFF	#000000	##000000
##5172CB	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCE

Deuteranopia (green-blind)

#3871C9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5172cb;
/* rgb */ color: rgb(81, 114, 203);
/* oklch */ color: oklch(57.1% 0.142 266.6);

Tailwind

colors: {
  custom: {
    50: '#8c9adb',
    500: '#5172cb',
    950: '#000000',
  },
}

SCSS

$custom: #5172cb;
$custom-light: #8c9adb;
$custom-dark: #000000;

JSON

{
  "hex": "#5172cb",
  "rgb": {
    "r": 81,
    "g": 114,
    "b": 203
  },
  "hsl": {
    "h": 223.77,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.57103,
    "c": 0.14235,
    "h": 266.6
  },
  "luminance": 0.18096
}

Semantic roles & 50–950 ramp

primary

#5172CB

secondary

#D5C8A3

accent

#B64ADD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5172CB

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

Preview Lab → · Contrast checker → · Palette generator →