#5B9DF3#5B9DF3

#5B9DF3 is a light, vivid cyan. Relative luminance 0.328; OKLCH L 69.1% C 0.144 H 255.8°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#5B9DF3
RGB	rgb(91, 157, 243)
HSL	hsl(214, 86%, 65%)
HSV	hsv(214, 63%, 95%)
CMYK	cmyk(62.6%, 35.4%, 0%, 4.7%)
CIE-LAB	lab(64.00, 4.95, -49.34)
CIE-LCH	lch(64.00, 49.59, 275.73°)
OKLab	oklab(69.07% -0.0355 -0.1399)
OKLCH	oklch(69.07% 0.144 255.8)
XYZ	xyz(32.5432, 32.8061, 89.3938)
Luminance	0.3281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9DF3 #F3B15B

analogous

#5BE9F3 #5B9DF3 #655BF3

triadic

#5B9DF3 #F35B9D #9DF35B

tetradic

#5B9DF3 #F35BE9 #F3B15B #5BF365

square

#5B9DF3 #F35BE9 #F3B15B #5BF365

split-complementary

#5B9DF3 #F3655B #E9F35B

monochromatic

#0E5EC5 #227BEF #5B9DF3 #94BFF7 #CDE1FB

Accessibility & contrast

On white

2.78

#5B9DF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#5B9DF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9DF3

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9DF3	#FFFFFF	#000000	##000000
##5B9DF3	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A3F7

Deuteranopia (green-blind)

#6395F1

Tritanopia (blue-blind)

#00B1BD

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #5b9df3;
/* rgb */ color: rgb(91, 157, 243);
/* oklch */ color: oklch(69.1% 0.144 255.8);

Tailwind

colors: {
  custom: {
    50: '#96b9f7',
    500: '#5b9df3',
    950: '#000000',
  },
}

SCSS

$custom: #5b9df3;
$custom-light: #96b9f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9df3",
  "rgb": {
    "r": 91,
    "g": 157,
    "b": 243
  },
  "hsl": {
    "h": 213.947,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.69066,
    "c": 0.14436,
    "h": 255.8
  },
  "luminance": 0.32809
}

Semantic roles & 50–950 ramp

primary

#5B9DF3

secondary

#EED8BB

accent

#8203E3

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1117

muted

#7E8085

Preview Lab

Preview with #5B9DF3

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

Preview Lab → · Contrast checker → · Palette generator →