#5B83EF#5B83EF

#5B83EF is a light, vivid blue. Relative luminance 0.247; OKLCH L 63.4% C 0.168 H 266.4°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#5B83EF
RGB	rgb(91, 131, 239)
HSL	hsl(224, 82%, 65%)
HSV	hsv(224, 62%, 94%)
CMYK	cmyk(61.9%, 45.2%, 0%, 6.3%)
CIE-LAB	lab(56.77, 19.06, -58.64)
CIE-LCH	lch(56.77, 61.66, 288.00°)
OKLab	oklab(63.4% -0.0105 -0.1675)
OKLCH	oklch(63.4% 0.168 266.4)
XYZ	xyz(28.0053, 24.6863, 84.9337)
Luminance	0.2469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B83EF #EFC75B

analogous

#5BCDEF #5B83EF #7D5BEF

triadic

#5B83EF #EF5B83 #83EF5B

tetradic

#5B83EF #EF5BCD #EFC75B #5BEF7D

square

#5B83EF #EF5BCD #EFC75B #5BEF7D

split-complementary

#5B83EF #EF7D5B #CDEF5B

monochromatic

#1241BD #2359EA #5B83EF #93ADF4 #CBD7FA

Accessibility & contrast

On white

3.54

#5B83EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#5B83EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B83EF

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B83EF	#FFFFFF	#000000	##000000
##5B83EF	1.00	3.54	5.94	5.94
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F8FF3

Deuteranopia (green-blind)

#3682ED

Tritanopia (blue-blind)

#009CAD

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #5b83ef;
/* rgb */ color: rgb(91, 131, 239);
/* oklch */ color: oklch(63.4% 0.168 266.4);

Tailwind

colors: {
  custom: {
    50: '#96a6f5',
    500: '#5b83ef',
    950: '#000000',
  },
}

SCSS

$custom: #5b83ef;
$custom-light: #96a6f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b83ef",
  "rgb": {
    "r": 91,
    "g": 131,
    "b": 239
  },
  "hsl": {
    "h": 223.784,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.63402,
    "c": 0.16785,
    "h": 266.4
  },
  "luminance": 0.24689
}

Semantic roles & 50–950 ramp

primary

#5B83EF

secondary

#ECDFBA

accent

#A407DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0F0F17

muted

#7E7F85

Preview Lab

Preview with #5B83EF

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

Preview Lab → · Contrast checker → · Palette generator →