#5B8DF9#5B8DF9

#5B8DF9 is a light, vivid blue. Relative luminance 0.281; OKLCH L 66.1% C 0.170 H 263.7°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B8DF9
RGB	rgb(91, 141, 249)
HSL	hsl(221, 93%, 67%)
HSV	hsv(221, 63%, 98%)
CMYK	cmyk(63.5%, 43.4%, 0%, 2.4%)
CIE-LAB	lab(59.99, 16.39, -59.02)
CIE-LCH	lch(59.99, 61.25, 285.52°)
OKLab	oklab(66.06% -0.0186 -0.1685)
OKLCH	oklch(66.06% 0.17 263.7)
XYZ	xyz(30.9322, 28.1106, 93.3999)
Luminance	0.2811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8DF9 #F9C75B

analogous

#5BDCF9 #5B8DF9 #785BF9

triadic

#5B8DF9 #F95B8D #8DF95B

tetradic

#5B8DF9 #F95BDC #F9C75B #5BF978

square

#5B8DF9 #F95BDC #F9C75B #5BF978

split-complementary

#5B8DF9 #F9785B #DCF95B

monochromatic

#0848D2 #2064F7 #5B8DF9 #96B6FB #D1DFFD

Accessibility & contrast

On white

3.17

#5B8DF9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#5B8DF9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8DF9

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8DF9	#FFFFFF	#000000	##000000
##5B8DF9	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)

#5A98FD

Deuteranopia (green-blind)

#408AF7

Tritanopia (blue-blind)

#00A6B7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5b8df9;
/* rgb */ color: rgb(91, 141, 249);
/* oklch */ color: oklch(66.1% 0.170 263.7);

Tailwind

colors: {
  custom: {
    50: '#97adfc',
    500: '#5b8df9',
    950: '#000000',
  },
}

SCSS

$custom: #5b8df9;
$custom-light: #97adfc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8df9",
  "rgb": {
    "r": 91,
    "g": 141,
    "b": 249
  },
  "hsl": {
    "h": 221.013,
    "s": 92.941,
    "l": 66.667
  },
  "oklch": {
    "l": 0.66057,
    "c": 0.1695,
    "h": 263.7
  },
  "luminance": 0.28113
}

Semantic roles & 50–950 ramp

primary

#5B8DF9

secondary

#F1E1BE

accent

#9D00E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #5B8DF9

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

Preview Lab → · Contrast checker → · Palette generator →