#5183CE#5183CE

#5183CE is a mid, vivid blue. Relative luminance 0.224; OKLCH L 60.9% C 0.127 H 258.3°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#5183CE
RGB	rgb(81, 131, 206)
HSL	hsl(216, 56%, 56%)
HSV	hsv(216, 61%, 81%)
CMYK	cmyk(60.7%, 36.4%, 0%, 19.2%)
CIE-LAB	lab(54.49, 6.15, -43.81)
CIE-LCH	lch(54.49, 44.24, 277.99°)
OKLab	oklab(60.93% -0.0257 -0.1242)
OKLCH	oklch(60.93% 0.127 258.3)
XYZ	xyz(22.6463, 22.4361, 61.5177)
Luminance	0.2244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183CE #CE9C51

analogous

#51C2CE #5183CE #5E51CE

triadic

#5183CE #CE5183 #83CE51

tetradic

#5183CE #CE51C2 #CE9C51 #51CE5E

square

#5183CE #CE51C2 #CE9C51 #51CE5E

split-complementary

#5183CE #CE5E51 #C2CE51

monochromatic

#244980 #3264B0 #5183CE #81A5DB #B1C7E9

Accessibility & contrast

On white

3.83

#5183CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#5183CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183CE

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183CE	#FFFFFF	#000000	##000000
##5183CE	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6389D1

Deuteranopia (green-blind)

#527DCC

Tritanopia (blue-blind)

#00949F

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #5183ce;
/* rgb */ color: rgb(81, 131, 206);
/* oklch */ color: oklch(60.9% 0.127 258.3);

Tailwind

colors: {
  custom: {
    50: '#8ca6dd',
    500: '#5183ce',
    950: '#000000',
  },
}

SCSS

$custom: #5183ce;
$custom-light: #8ca6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5183ce",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 206
  },
  "hsl": {
    "h": 216,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.60926,
    "c": 0.12684,
    "h": 258.3
  },
  "luminance": 0.22438
}

Semantic roles & 50–950 ramp

primary

#5183CE

secondary

#D7C3A4

accent

#A348DF

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5183CE

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

Preview Lab → · Contrast checker → · Palette generator →