#5B8EFF#5B8EFF

#5B8EFF is a light, vivid blue. Relative luminance 0.288; OKLCH L 66.6% C 0.176 H 264.0°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#5B8EFF
RGB	rgb(91, 142, 255)
HSL	hsl(221, 100%, 68%)
HSV	hsv(221, 64%, 100%)
CMYK	cmyk(64.3%, 44.3%, 0%, 0%)
CIE-LAB	lab(60.59, 17.80, -61.34)
CIE-LCH	lch(60.59, 63.88, 286.19°)
OKLab	oklab(66.63% -0.0185 -0.1753)
OKLCH	oklch(66.63% 0.176 264)
XYZ	xyz(32.0311, 28.7871, 98.4568)
Luminance	0.2879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8EFF #FFCC5B

analogous

#5BE0FF #5B8EFF #7A5BFF

triadic

#5B8EFF #FF5B8E #8EFF5B

tetradic

#5B8EFF #FF5BE0 #FFCC5B #5BFF7A

square

#5B8EFF #FF5BE0 #FFCC5B #5BFF7A

split-complementary

#5B8EFF #FF7A5B #E0FF5B

monochromatic

#0046E0 #1E64FF #5B8EFF #98B8FF #D5E2FF

Accessibility & contrast

On white

3.11

#5B8EFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#5B8EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8EFF

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8EFF	#FFFFFF	#000000	##000000
##5B8EFF	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#579AFF

Deuteranopia (green-blind)

#3B8BFD

Tritanopia (blue-blind)

#00A8BA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5b8eff;
/* rgb */ color: rgb(91, 142, 255);
/* oklch */ color: oklch(66.6% 0.176 264.0);

Tailwind

colors: {
  custom: {
    50: '#98aeff',
    500: '#5b8eff',
    950: '#000000',
  },
}

SCSS

$custom: #5b8eff;
$custom-light: #98aeff;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8eff",
  "rgb": {
    "r": 91,
    "g": 142,
    "b": 255
  },
  "hsl": {
    "h": 221.341,
    "s": 100,
    "l": 67.843
  },
  "oklch": {
    "l": 0.66632,
    "c": 0.17628,
    "h": 264
  },
  "luminance": 0.2879
}

Semantic roles & 50–950 ramp

primary

#5B8EFF

secondary

#F4E4C2

accent

#9E00E6

background

#FAFAFF

surface

#F4F4FF

border

#CECED7

text

#0F1018

muted

#7F7F86

Preview Lab

Preview with #5B8EFF

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

Preview Lab → · Contrast checker → · Palette generator →