#5B9DFD#5B9DFD

#5B9DFD is a light, vivid blue. Relative luminance 0.334; OKLCH L 69.6% C 0.157 H 257.8°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#5B9DFD
RGB	rgb(91, 157, 253)
HSL	hsl(216, 98%, 67%)
HSV	hsv(216, 64%, 99%)
CMYK	cmyk(64%, 37.9%, 0%, 0.8%)
CIE-LAB	lab(64.50, 8.26, -54.01)
CIE-LCH	lch(64.50, 54.64, 278.70°)
OKLab	oklab(69.62% -0.0332 -0.1536)
OKLCH	oklch(69.62% 0.157 257.8)
XYZ	xyz(34.0946, 33.4266, 97.5647)
Luminance	0.3343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9DFD #FDBB5B

analogous

#5BEEFD #5B9DFD #6A5BFD

triadic

#5B9DFD #FD5B9D #9DFD5B

tetradic

#5B9DFD #FD5BEE #FDBB5B #5BFD6A

square

#5B9DFD #FD5BEE #FDBB5B #5BFD6A

split-complementary

#5B9DFD #FD6A5B #EEFD5B

monochromatic

#035BDB #1F79FC #5B9DFD #97C1FE #D4E5FE

Accessibility & contrast

On white

2.73

#5B9DFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#5B9DFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9DFD

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9DFD	#FFFFFF	#000000	##000000
##5B9DFD	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72A5FF

Deuteranopia (green-blind)

#5B95FB

Tritanopia (blue-blind)

#00B3C1

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #5b9dfd;
/* rgb */ color: rgb(91, 157, 253);
/* oklch */ color: oklch(69.6% 0.157 257.8);

Tailwind

colors: {
  custom: {
    50: '#98b9fe',
    500: '#5b9dfd',
    950: '#000000',
  },
}

SCSS

$custom: #5b9dfd;
$custom-light: #98b9fe;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9dfd",
  "rgb": {
    "r": 91,
    "g": 157,
    "b": 253
  },
  "hsl": {
    "h": 215.556,
    "s": 97.59,
    "l": 67.451
  },
  "oklch": {
    "l": 0.6962,
    "c": 0.15714,
    "h": 257.8
  },
  "luminance": 0.3343
}

Semantic roles & 50–950 ramp

primary

#5B9DFD

secondary

#F3DFC1

accent

#8800E6

background

#FAFBFF

surface

#F3F6FF

border

#CDD0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #5B9DFD

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

Preview Lab → · Contrast checker → · Palette generator →