#5B8BF5#5B8BF5

#5B8BF5 is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.4% C 0.166 H 264.0°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#5B8BF5
RGB	rgb(91, 139, 245)
HSL	hsl(221, 89%, 66%)
HSV	hsv(221, 63%, 96%)
CMYK	cmyk(62.9%, 43.3%, 0%, 3.9%)
CIE-LAB	lab(59.23, 16.24, -58.02)
CIE-LCH	lch(59.23, 60.25, 285.64°)
OKLab	oklab(65.4% -0.0173 -0.1656)
OKLCH	oklch(65.4% 0.166 264)
XYZ	xyz(30.0227, 27.2792, 90.0517)
Luminance	0.2728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8BF5 #F5C55B

analogous

#5BD8F5 #5B8BF5 #785BF5

triadic

#5B8BF5 #F55B8B #8BF55B

tetradic

#5B8BF5 #F55BD8 #F5C55B #5BF578

square

#5B8BF5 #F55BD8 #F5C55B #5BF578

split-complementary

#5B8BF5 #F5785B #D8F55B

monochromatic

#0C47C9 #2162F1 #5B8BF5 #95B4F9 #CEDDFC

Accessibility & contrast

On white

3.25

#5B8BF5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#5B8BF5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BF5

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8BF5	#FFFFFF	#000000	##000000
##5B8BF5	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5996F9

Deuteranopia (green-blind)

#4188F3

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #5b8bf5;
/* rgb */ color: rgb(91, 139, 245);
/* oklch */ color: oklch(65.4% 0.166 264.0);

Tailwind

colors: {
  custom: {
    50: '#97acf9',
    500: '#5b8bf5',
    950: '#000000',
  },
}

SCSS

$custom: #5b8bf5;
$custom-light: #97acf9;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8bf5",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 245
  },
  "hsl": {
    "h": 221.299,
    "s": 88.506,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65402,
    "c": 0.16649,
    "h": 264
  },
  "luminance": 0.27282
}

Semantic roles & 50–950 ramp

primary

#5B8BF5

secondary

#EFDFBC

accent

#9E00E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8BF5

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

Preview Lab → · Contrast checker → · Palette generator →