#5183DF#5183DF

#5183DF is a mid, vivid blue. Relative luminance 0.233; OKLCH L 61.9% C 0.150 H 261.5°. Best body text is #000000 at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#5183DF
RGB	rgb(81, 131, 223)
HSL	hsl(219, 69%, 60%)
HSV	hsv(219, 64%, 87%)
CMYK	cmyk(63.7%, 41.3%, 0%, 12.5%)
CIE-LAB	lab(55.39, 11.90, -51.95)
CIE-LCH	lch(55.39, 53.30, 282.90°)
OKLab	oklab(61.92% -0.022 -0.148)
OKLCH	oklch(61.92% 0.15 261.5)
XYZ	xyz(24.8242, 23.3073, 72.9883)
Luminance	0.2331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183DF #DFAD51

analogous

#51CADF #5183DF #6651DF

triadic

#5183DF #DF5183 #83DF51

tetradic

#5183DF #DF51CA #DFAD51 #51DF66

square

#5183DF #DF51CA #DFAD51 #51DF66

split-complementary

#5183DF #DF6651 #CADF51

monochromatic

#1C4899 #2661CD #5183DF #85A8E9 #B8CDF2

Accessibility & contrast

On white

3.71

#5183DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.66

#5183DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183DF

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183DF	#FFFFFF	#000000	##000000
##5183DF	1.00	3.71	5.66	5.66
#FFFFFF	3.71	1.00	21.00	21.00
#000000	5.66	21.00	1.00	1.00
##000000	5.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598CE3

Deuteranopia (green-blind)

#447FDD

Tritanopia (blue-blind)

#0098A6

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5183df;
/* rgb */ color: rgb(81, 131, 223);
/* oklch */ color: oklch(61.9% 0.150 261.5);

Tailwind

colors: {
  custom: {
    50: '#8fa6e9',
    500: '#5183df',
    950: '#000000',
  },
}

SCSS

$custom: #5183df;
$custom-light: #8fa6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5183df",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 223
  },
  "hsl": {
    "h": 218.873,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.61918,
    "c": 0.14968,
    "h": 261.5
  },
  "luminance": 0.2331
}

Semantic roles & 50–950 ramp

primary

#5183DF

secondary

#E1CEAA

accent

#AE3CEC

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5183DF

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

Preview Lab → · Contrast checker → · Palette generator →