#5173D2#5173D2

#5173D2 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.8% C 0.151 H 266.9°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#5173D2
RGB	rgb(81, 115, 210)
HSL	hsl(224, 59%, 57%)
HSV	hsv(224, 61%, 82%)
CMYK	cmyk(61.4%, 45.2%, 0%, 17.6%)
CIE-LAB	lab(50.29, 17.27, -52.76)
CIE-LCH	lch(50.29, 55.51, 288.13°)
OKLab	oklab(57.76% -0.0083 -0.1506)
OKLCH	oklch(57.76% 0.151 266.9)
XYZ	xyz(21.1530, 18.6621, 63.4477)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173D2 #D2B051

analogous

#51B4D2 #5173D2 #7051D2

triadic

#5173D2 #D25173 #73D251

tetradic

#5173D2 #D251B4 #D2B051 #51D270

square

#5173D2 #D251B4 #D2B051 #51D270

split-complementary

#5173D2 #D27051 #B4D251

monochromatic

#233D86 #2F53B7 #5173D2 #829ADF #B2C1EB

Accessibility & contrast

On white

4.44

#5173D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#5173D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173D2

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173D2	#FFFFFF	#000000	##000000
##5173D2	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#467ED6

Deuteranopia (green-blind)

#3172D0

Tritanopia (blue-blind)

#008998

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5173d2;
/* rgb */ color: rgb(81, 115, 210);
/* oklch */ color: oklch(57.8% 0.151 266.9);

Tailwind

colors: {
  custom: {
    50: '#8d9ae0',
    500: '#5173d2',
    950: '#000000',
  },
}

SCSS

$custom: #5173d2;
$custom-light: #8d9ae0;
$custom-dark: #000000;

JSON

{
  "hex": "#5173d2",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 210
  },
  "hsl": {
    "h": 224.186,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57756,
    "c": 0.15085,
    "h": 266.9
  },
  "luminance": 0.18664
}

Semantic roles & 50–950 ramp

primary

#5173D2

secondary

#DACCA5

accent

#B946E2

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5173D2

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

Preview Lab → · Contrast checker → · Palette generator →