#5183DD#5183DD

#5183DD is a mid, vivid blue. Relative luminance 0.232; OKLCH L 61.8% C 0.147 H 261.2°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#5183DD
RGB	rgb(81, 131, 221)
HSL	hsl(219, 67%, 59%)
HSV	hsv(219, 63%, 87%)
CMYK	cmyk(63.3%, 40.7%, 0%, 13.3%)
CIE-LAB	lab(55.28, 11.22, -51.01)
CIE-LCH	lch(55.28, 52.23, 282.41°)
OKLab	oklab(61.8% -0.0224 -0.1453)
OKLCH	oklch(61.8% 0.147 261.2)
XYZ	xyz(24.5562, 23.2001, 71.5766)
Luminance	0.2320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183DD #DDAB51

analogous

#51C9DD #5183DD #6551DD

triadic

#5183DD #DD5183 #83DD51

tetradic

#5183DD #DD51C9 #DDAB51 #51DD65

square

#5183DD #DD51C9 #DDAB51 #51DD65

split-complementary

#5183DD #DD6551 #C9DD51

monochromatic

#1D4996 #2761C9 #5183DD #84A7E7 #B7CCF1

Accessibility & contrast

On white

3.72

#5183DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#5183DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183DD

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183DD	#FFFFFF	#000000	##000000
##5183DD	1.00	3.72	5.64	5.64
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A8BE1

Deuteranopia (green-blind)

#467EDB

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5183dd;
/* rgb */ color: rgb(81, 131, 221);
/* oklch */ color: oklch(61.8% 0.147 261.2);

Tailwind

colors: {
  custom: {
    50: '#8ea6e8',
    500: '#5183dd',
    950: '#000000',
  },
}

SCSS

$custom: #5183dd;
$custom-light: #8ea6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5183dd",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 221
  },
  "hsl": {
    "h": 218.571,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.61797,
    "c": 0.14699,
    "h": 261.2
  },
  "luminance": 0.23202
}

Semantic roles & 50–950 ramp

primary

#5183DD

secondary

#E0CDAA

accent

#AD3EEA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5183DD

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

Preview Lab → · Contrast checker → · Palette generator →