#5B8BF4#5B8BF4

#5B8BF4 is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.3% C 0.165 H 263.9°. Best body text is #000000 at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#5B8BF4
RGB	rgb(91, 139, 244)
HSL	hsl(221, 87%, 66%)
HSV	hsv(221, 63%, 96%)
CMYK	cmyk(62.7%, 43%, 0%, 4.3%)
CIE-LAB	lab(59.18, 15.91, -57.56)
CIE-LCH	lch(59.18, 59.72, 285.45°)
OKLab	oklab(65.34% -0.0175 -0.1642)
OKLCH	oklch(65.34% 0.165 263.9)
XYZ	xyz(29.8705, 27.2183, 89.2499)
Luminance	0.2722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8BF4 #F4C45B

analogous

#5BD8F4 #5B8BF4 #775BF4

triadic

#5B8BF4 #F45B8B #8BF45B

tetradic

#5B8BF4 #F45BD8 #F4C45B #5BF477

square

#5B8BF4 #F45BD8 #F4C45B #5BF477

split-complementary

#5B8BF4 #F4775B #D8F45B

monochromatic

#0D48C7 #2262F0 #5B8BF4 #94B4F8 #CEDCFC

Accessibility & contrast

On white

3.26

#5B8BF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.44

#5B8BF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8BF4

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8BF4	#FFFFFF	#000000	##000000
##5B8BF4	1.00	3.26	6.44	6.44
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.44	21.00	1.00	1.00
##000000	6.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A96F8

Deuteranopia (green-blind)

#4288F2

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #5b8bf4;
/* rgb */ color: rgb(91, 139, 244);
/* oklch */ color: oklch(65.3% 0.165 263.9);

Tailwind

colors: {
  custom: {
    50: '#97acf8',
    500: '#5b8bf4',
    950: '#000000',
  },
}

SCSS

$custom: #5b8bf4;
$custom-light: #97acf8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8bf4",
  "rgb": {
    "r": 91,
    "g": 139,
    "b": 244
  },
  "hsl": {
    "h": 221.176,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.65341,
    "c": 0.16516,
    "h": 263.9
  },
  "luminance": 0.27221
}

Semantic roles & 50–950 ramp

primary

#5B8BF4

secondary

#EFDFBC

accent

#9D02E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F1017

muted

#7E7F85

Preview Lab

Preview with #5B8BF4

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

Preview Lab → · Contrast checker → · Palette generator →