#5183DB#5183DB

#5183DB is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.7% C 0.144 H 260.9°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#5183DB
RGB	rgb(81, 131, 219)
HSL	hsl(218, 66%, 59%)
HSV	hsv(218, 63%, 86%)
CMYK	cmyk(63%, 40.2%, 0%, 14.1%)
CIE-LAB	lab(55.17, 10.54, -50.06)
CIE-LCH	lch(55.17, 51.16, 281.89°)
OKLab	oklab(61.68% -0.0228 -0.1425)
OKLCH	oklch(61.68% 0.144 260.9)
XYZ	xyz(24.2913, 23.0941, 70.1816)
Luminance	0.2310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183DB #DBA951

analogous

#51C8DB #5183DB #6451DB

triadic

#5183DB #DB5183 #83DB51

tetradic

#5183DB #DB51C8 #DBA951 #51DB64

square

#5183DB #DB51C8 #DBA951 #51DB64

split-complementary

#5183DB #DB6451 #C8DB51

monochromatic

#1E4993 #2962C6 #5183DB #84A7E5 #B6CBF0

Accessibility & contrast

On white

3.74

#5183DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#5183DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183DB

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183DB	#FFFFFF	#000000	##000000
##5183DB	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C8BDE

Deuteranopia (green-blind)

#487ED9

Tritanopia (blue-blind)

#0097A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5183db;
/* rgb */ color: rgb(81, 131, 219);
/* oklch */ color: oklch(61.7% 0.144 260.9);

Tailwind

colors: {
  custom: {
    50: '#8ea6e6',
    500: '#5183db',
    950: '#000000',
  },
}

SCSS

$custom: #5183db;
$custom-light: #8ea6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5183db",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 219
  },
  "hsl": {
    "h": 218.261,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.61678,
    "c": 0.1443,
    "h": 260.9
  },
  "luminance": 0.23096
}

Semantic roles & 50–950 ramp

primary

#5183DB

secondary

#DFCBA9

accent

#AB3FE9

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #5183DB

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

Preview Lab → · Contrast checker → · Palette generator →