#5B8CF9#5B8CF9

#5B8CF9 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.9% C 0.171 H 264.1°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B8CF9
RGB	rgb(91, 140, 249)
HSL	hsl(221, 93%, 67%)
HSV	hsv(221, 63%, 98%)
CMYK	cmyk(63.5%, 43.8%, 0%, 2.4%)
CIE-LAB	lab(59.72, 16.99, -59.44)
CIE-LCH	lch(59.72, 61.82, 285.95°)
OKLab	oklab(65.85% -0.0176 -0.1697)
OKLCH	oklch(65.85% 0.171 264.1)
XYZ	xyz(30.7854, 27.8170, 93.3510)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8CF9 #F9C85B

analogous

#5BDBF9 #5B8CF9 #795BF9

triadic

#5B8CF9 #F95B8C #8CF95B

tetradic

#5B8CF9 #F95BDB #F9C85B #5BF979

square

#5B8CF9 #F95BDB #F9C85B #5BF979

split-complementary

#5B8CF9 #F9795B #DBF95B

monochromatic

#0846D2 #2063F7 #5B8CF9 #96B5FB #D1DFFD

Accessibility & contrast

On white

3.20

#5B8CF9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#5B8CF9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8CF9

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8CF9	#FFFFFF	#000000	##000000
##5B8CF9	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5898FD

Deuteranopia (green-blind)

#3E89F7

Tritanopia (blue-blind)

#00A5B6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #5b8cf9;
/* rgb */ color: rgb(91, 140, 249);
/* oklch */ color: oklch(65.9% 0.171 264.1);

Tailwind

colors: {
  custom: {
    50: '#97adfc',
    500: '#5b8cf9',
    950: '#000000',
  },
}

SCSS

$custom: #5b8cf9;
$custom-light: #97adfc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8cf9",
  "rgb": {
    "r": 91,
    "g": 140,
    "b": 249
  },
  "hsl": {
    "h": 221.392,
    "s": 92.941,
    "l": 66.667
  },
  "oklch": {
    "l": 0.65853,
    "c": 0.17065,
    "h": 264.1
  },
  "luminance": 0.2782
}

Semantic roles & 50–950 ramp

primary

#5B8CF9

secondary

#F1E2BE

accent

#9E00E6

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #5B8CF9

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

Preview Lab → · Contrast checker → · Palette generator →