#5B8DFD#5B8DFD

#5B8DFD is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.3% C 0.175 H 264.1°. Best body text is #000000 at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#5B8DFD
RGB	rgb(91, 141, 253)
HSL	hsl(221, 98%, 67%)
HSV	hsv(221, 64%, 99%)
CMYK	cmyk(64%, 44.3%, 0%, 0.8%)
CIE-LAB	lab(60.22, 17.73, -60.85)
CIE-LCH	lch(60.22, 63.38, 286.24°)
OKLab	oklab(66.3% -0.0179 -0.1739)
OKLCH	oklch(66.3% 0.175 264.1)
XYZ	xyz(31.5627, 28.3628, 96.7207)
Luminance	0.2837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8DFD #FDCB5B

analogous

#5BDEFD #5B8DFD #7A5BFD

triadic

#5B8DFD #FD5B8D #8DFD5B

tetradic

#5B8DFD #FD5BDE #FDCB5B #5BFD7A

square

#5B8DFD #FD5BDE #FDCB5B #5BFD7A

split-complementary

#5B8DFD #FD7A5B #DEFD5B

monochromatic

#0345DB #1F63FC #5B8DFD #97B7FE #D4E1FE

Accessibility & contrast

On white

3.15

#5B8DFD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.67

#5B8DFD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8DFD

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8DFD	#FFFFFF	#000000	##000000
##5B8DFD	1.00	3.15	6.67	6.67
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.67	21.00	1.00	1.00
##000000	6.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5799FF

Deuteranopia (green-blind)

#3B8AFB

Tritanopia (blue-blind)

#00A7B9

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b8dfd;
/* rgb */ color: rgb(91, 141, 253);
/* oklch */ color: oklch(66.3% 0.175 264.1);

Tailwind

colors: {
  custom: {
    50: '#98adff',
    500: '#5b8dfd',
    950: '#000000',
  },
}

SCSS

$custom: #5b8dfd;
$custom-light: #98adff;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8dfd",
  "rgb": {
    "r": 91,
    "g": 141,
    "b": 253
  },
  "hsl": {
    "h": 221.481,
    "s": 97.59,
    "l": 67.451
  },
  "oklch": {
    "l": 0.66304,
    "c": 0.17479,
    "h": 264.1
  },
  "luminance": 0.28366
}

Semantic roles & 50–950 ramp

primary

#5B8DFD

secondary

#F3E4C1

accent

#9F00E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #5B8DFD

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

Preview Lab → · Contrast checker → · Palette generator →