#5B83DD#5B83DD

#5B83DD is a light, vivid blue. Relative luminance 0.237; OKLCH L 62.3% C 0.143 H 264.5°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#5B83DD
RGB	rgb(91, 131, 221)
HSL	hsl(222, 66%, 61%)
HSV	hsv(222, 59%, 87%)
CMYK	cmyk(58.8%, 40.7%, 0%, 13.3%)
CIE-LAB	lab(55.76, 13.07, -50.21)
CIE-LCH	lch(55.76, 51.88, 284.59°)
OKLab	oklab(62.3% -0.0136 -0.1428)
OKLCH	oklch(62.3% 0.143 264.5)
XYZ	xyz(25.4774, 23.6751, 71.6197)
Luminance	0.2368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B83DD #DDB55B

analogous

#5BC4DD #5B83DD #745BDD

triadic

#5B83DD #DD5B83 #83DD5B

tetradic

#5B83DD #DD5BC4 #DDB55B #5BDD74

square

#5B83DD #DD5BC4 #DDB55B #5BDD74

split-complementary

#5B83DD #DD745B #C4DD5B

monochromatic

#21479D #2B5ED0 #5B83DD #8EA9E8 #C0D0F2

Accessibility & contrast

On white

3.66

#5B83DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#5B83DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B83DD

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B83DD	#FFFFFF	#000000	##000000
##5B83DD	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C8CE1

Deuteranopia (green-blind)

#4A80DB

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5b83dd;
/* rgb */ color: rgb(91, 131, 221);
/* oklch */ color: oklch(62.3% 0.143 264.5);

Tailwind

colors: {
  custom: {
    50: '#93a6e8',
    500: '#5b83dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b83dd;
$custom-light: #93a6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b83dd",
  "rgb": {
    "r": 91,
    "g": 131,
    "b": 221
  },
  "hsl": {
    "h": 221.538,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.62301,
    "c": 0.14341,
    "h": 264.5
  },
  "luminance": 0.23677
}

Semantic roles & 50–950 ramp

primary

#5B83DD

secondary

#E2D3B1

accent

#9618CE

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5B83DD

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

Preview Lab → · Contrast checker → · Palette generator →