#5183D5#5183D5

#5183D5 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.3% C 0.136 H 259.8°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#5183D5
RGB	rgb(81, 131, 213)
HSL	hsl(217, 61%, 58%)
HSV	hsv(217, 62%, 84%)
CMYK	cmyk(62%, 38.5%, 0%, 16.5%)
CIE-LAB	lab(54.85, 8.51, -47.19)
CIE-LCH	lch(54.85, 47.95, 280.22°)
OKLab	oklab(61.33% -0.0241 -0.1341)
OKLCH	oklch(61.33% 0.136 259.8)
XYZ	xyz(23.5156, 22.7839, 66.0964)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183D5 #D5A351

analogous

#51C5D5 #5183D5 #6151D5

triadic

#5183D5 #D55183 #83D551

tetradic

#5183D5 #D551C5 #D5A351 #51D561

square

#5183D5 #D551C5 #D5A351 #51D561

split-complementary

#5183D5 #D56151 #C5D551

monochromatic

#21498A #2D63BC #5183D5 #82A6E1 #B4C9ED

Accessibility & contrast

On white

3.78

#5183D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#5183D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183D5

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183D5	#FFFFFF	#000000	##000000
##5183D5	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F8AD8

Deuteranopia (green-blind)

#4D7ED3

Tritanopia (blue-blind)

#0096A2

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5183d5;
/* rgb */ color: rgb(81, 131, 213);
/* oklch */ color: oklch(61.3% 0.136 259.8);

Tailwind

colors: {
  custom: {
    50: '#8da6e2',
    500: '#5183d5',
    950: '#000000',
  },
}

SCSS

$custom: #5183d5;
$custom-light: #8da6e2;
$custom-dark: #000000;

JSON

{
  "hex": "#5183d5",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 213
  },
  "hsl": {
    "h": 217.273,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.61325,
    "c": 0.13624,
    "h": 259.8
  },
  "luminance": 0.22786
}

Semantic roles & 50–950 ramp

primary

#5183D5

secondary

#DBC7A6

accent

#A744E4

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5183D5

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

Preview Lab → · Contrast checker → · Palette generator →