#5183CA#5183CA

#5183CA is a mid, vivid blue. Relative luminance 0.222; OKLCH L 60.7% C 0.121 H 257.3°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#5183CA
RGB	rgb(81, 131, 202)
HSL	hsl(215, 53%, 55%)
HSV	hsv(215, 60%, 79%)
CMYK	cmyk(59.9%, 35.1%, 0%, 20.8%)
CIE-LAB	lab(54.29, 4.81, -41.86)
CIE-LCH	lch(54.29, 42.14, 276.56°)
OKLab	oklab(60.7% -0.0267 -0.1185)
OKLCH	oklch(60.7% 0.121 257.3)
XYZ	xyz(22.1665, 22.2442, 58.9911)
Luminance	0.2225 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183CA #CA9851

analogous

#51BFCA #5183CA #5C51CA

triadic

#5183CA #CA5183 #83CA51

tetradic

#5183CA #CA51BF #CA9851 #51CA5C

square

#5183CA #CA51BF #CA9851 #51CA5C

split-complementary

#5183CA #CA5C51 #BFCA51

monochromatic

#25497B #3465AA #5183CA #80A4D8 #AFC6E7

Accessibility & contrast

On white

3.85

#5183CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#5183CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183CA

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183CA	#FFFFFF	#000000	##000000
##5183CA	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6588CD

Deuteranopia (green-blind)

#557DC9

Tritanopia (blue-blind)

#00939D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #5183ca;
/* rgb */ color: rgb(81, 131, 202);
/* oklch */ color: oklch(60.7% 0.121 257.3);

Tailwind

colors: {
  custom: {
    50: '#8ca6da',
    500: '#5183ca',
    950: '#000000',
  },
}

SCSS

$custom: #5183ca;
$custom-light: #8ca6da;
$custom-dark: #000000;

JSON

{
  "hex": "#5183ca",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 202
  },
  "hsl": {
    "h": 215.207,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.60703,
    "c": 0.12149,
    "h": 257.3
  },
  "luminance": 0.22246
}

Semantic roles & 50–950 ramp

primary

#5183CA

secondary

#D5C0A2

accent

#A14BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5183CA

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

Preview Lab → · Contrast checker → · Palette generator →