#5183D8#5183D8

#5183D8 is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.5% C 0.140 H 260.4°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#5183D8
RGB	rgb(81, 131, 216)
HSL	hsl(218, 63%, 58%)
HSV	hsv(218, 63%, 85%)
CMYK	cmyk(62.5%, 39.4%, 0%, 15.3%)
CIE-LAB	lab(55.01, 9.52, -48.63)
CIE-LCH	lch(55.01, 49.55, 281.08°)
OKLab	oklab(61.5% -0.0234 -0.1383)
OKLCH	oklch(61.5% 0.14 260.4)
XYZ	xyz(23.8999, 22.9376, 68.1203)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183D8 #D8A651

analogous

#51C6D8 #5183D8 #6251D8

triadic

#5183D8 #D85183 #83D851

tetradic

#5183D8 #D851C6 #D8A651 #51D862

square

#5183D8 #D851C6 #D8A651 #51D862

split-complementary

#5183D8 #D86251 #C6D851

monochromatic

#20498F #2B63C1 #5183D8 #83A7E3 #B5CAEE

Accessibility & contrast

On white

3.76

#5183D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#5183D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183D8

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183D8	#FFFFFF	#000000	##000000
##5183D8	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E8ADB

Deuteranopia (green-blind)

#4A7ED6

Tritanopia (blue-blind)

#0096A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5183d8;
/* rgb */ color: rgb(81, 131, 216);
/* oklch */ color: oklch(61.5% 0.140 260.4);

Tailwind

colors: {
  custom: {
    50: '#8ea6e4',
    500: '#5183d8',
    950: '#000000',
  },
}

SCSS

$custom: #5183d8;
$custom-light: #8ea6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#5183d8",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 216
  },
  "hsl": {
    "h": 217.778,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.61501,
    "c": 0.14026,
    "h": 260.4
  },
  "luminance": 0.2294
}

Semantic roles & 50–950 ramp

primary

#5183D8

secondary

#DDC9A8

accent

#A941E6

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F15

muted

#7E7F84

Preview Lab

Preview with #5183D8

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

Preview Lab → · Contrast checker → · Palette generator →