#5B8EF4#5B8EF4

#5B8EF4 is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.0% C 0.162 H 262.7°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B8EF4
RGB	rgb(91, 142, 244)
HSL	hsl(220, 87%, 66%)
HSV	hsv(220, 63%, 96%)
CMYK	cmyk(62.7%, 41.8%, 0%, 4.3%)
CIE-LAB	lab(59.98, 14.11, -56.28)
CIE-LCH	lch(59.98, 58.02, 284.08°)
OKLab	oklab(65.96% -0.0204 -0.1604)
OKLCH	oklch(65.96% 0.162 262.7)
XYZ	xyz(30.3108, 28.0990, 89.3967)
Luminance	0.2810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8EF4 #F4C15B

analogous

#5BDAF4 #5B8EF4 #745BF4

triadic

#5B8EF4 #F45B8E #8EF45B

tetradic

#5B8EF4 #F45BDA #F4C15B #5BF474

square

#5B8EF4 #F45BDA #F4C15B #5BF474

split-complementary

#5B8EF4 #F4745B #DAF45B

monochromatic

#0D4BC7 #2266F0 #5B8EF4 #94B6F8 #CEDDFC

Accessibility & contrast

On white

3.17

#5B8EF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#5B8EF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8EF4

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8EF4	#FFFFFF	#000000	##000000
##5B8EF4	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F98F8

Deuteranopia (green-blind)

#488AF2

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b8ef4;
/* rgb */ color: rgb(91, 142, 244);
/* oklch */ color: oklch(66.0% 0.162 262.7);

Tailwind

colors: {
  custom: {
    50: '#97aef8',
    500: '#5b8ef4',
    950: '#000000',
  },
}

SCSS

$custom: #5b8ef4;
$custom-light: #97aef8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8ef4",
  "rgb": {
    "r": 91,
    "g": 142,
    "b": 244
  },
  "hsl": {
    "h": 220,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.65959,
    "c": 0.16172,
    "h": 262.7
  },
  "luminance": 0.28102
}

Semantic roles & 50–950 ramp

primary

#5B8EF4

secondary

#EFDEBC

accent

#9802E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8EF4

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

Preview Lab → · Contrast checker → · Palette generator →