#5183DC#5183DC

#5183DC is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.7% C 0.146 H 261.1°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#5183DC
RGB	rgb(81, 131, 220)
HSL	hsl(218, 67%, 59%)
HSV	hsv(218, 63%, 86%)
CMYK	cmyk(63.2%, 40.5%, 0%, 13.7%)
CIE-LAB	lab(55.22, 10.88, -50.53)
CIE-LCH	lch(55.22, 51.69, 282.15°)
OKLab	oklab(61.74% -0.0226 -0.1439)
OKLCH	oklch(61.74% 0.146 261.1)
XYZ	xyz(24.4234, 23.1470, 70.8770)
Luminance	0.2315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183DC #DCAA51

analogous

#51C9DC #5183DC #6551DC

triadic

#5183DC #DC5183 #83DC51

tetradic

#5183DC #DC51C9 #DCAA51 #51DC65

square

#5183DC #DC51C9 #DCAA51 #51DC65

split-complementary

#5183DC #DC6551 #C9DC51

monochromatic

#1E4995 #2862C8 #5183DC #84A7E6 #B7CCF0

Accessibility & contrast

On white

3.73

#5183DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#5183DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183DC

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183DC	#FFFFFF	#000000	##000000
##5183DC	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B8BE0

Deuteranopia (green-blind)

#477EDA

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5183dc;
/* rgb */ color: rgb(81, 131, 220);
/* oklch */ color: oklch(61.7% 0.146 261.1);

Tailwind

colors: {
  custom: {
    50: '#8ea6e7',
    500: '#5183dc',
    950: '#000000',
  },
}

SCSS

$custom: #5183dc;
$custom-light: #8ea6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#5183dc",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 220
  },
  "hsl": {
    "h": 218.417,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.61737,
    "c": 0.14564,
    "h": 261.1
  },
  "luminance": 0.23149
}

Semantic roles & 50–950 ramp

primary

#5183DC

secondary

#E0CCA9

accent

#AC3EE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5183DC

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

Preview Lab → · Contrast checker → · Palette generator →