#5183CD#5183CD

#5183CD is a mid, vivid blue. Relative luminance 0.224; OKLCH L 60.9% C 0.126 H 258.1°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#5183CD
RGB	rgb(81, 131, 205)
HSL	hsl(216, 55%, 56%)
HSV	hsv(216, 60%, 80%)
CMYK	cmyk(60.5%, 36.1%, 0%, 19.6%)
CIE-LAB	lab(54.44, 5.82, -43.32)
CIE-LCH	lch(54.44, 43.71, 277.65°)
OKLab	oklab(60.87% -0.026 -0.1228)
OKLCH	oklch(60.87% 0.126 258.1)
XYZ	xyz(22.5252, 22.3877, 60.8800)
Luminance	0.2239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183CD #CD9B51

analogous

#51C1CD #5183CD #5D51CD

triadic

#5183CD #CD5183 #83CD51

tetradic

#5183CD #CD51C1 #CD9B51 #51CD5D

square

#5183CD #CD51C1 #CD9B51 #51CD5D

split-complementary

#5183CD #CD5D51 #C1CD51

monochromatic

#25497F #3264AF #5183CD #81A5DB #B0C7E8

Accessibility & contrast

On white

3.83

#5183CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#5183CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183CD

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183CD	#FFFFFF	#000000	##000000
##5183CD	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6489D0

Deuteranopia (green-blind)

#537DCB

Tritanopia (blue-blind)

#00949E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #5183cd;
/* rgb */ color: rgb(81, 131, 205);
/* oklch */ color: oklch(60.9% 0.126 258.1);

Tailwind

colors: {
  custom: {
    50: '#8ca6dc',
    500: '#5183cd',
    950: '#000000',
  },
}

SCSS

$custom: #5183cd;
$custom-light: #8ca6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5183cd",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 205
  },
  "hsl": {
    "h": 215.806,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.6087,
    "c": 0.1255,
    "h": 258.1
  },
  "luminance": 0.2239
}

Semantic roles & 50–950 ramp

primary

#5183CD

secondary

#D7C2A3

accent

#A249DF

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5183CD

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

Preview Lab → · Contrast checker → · Palette generator →