#5B9BEB#5B9BEB

#5B9BEB is a light, vivid cyan. Relative luminance 0.317; OKLCH L 68.2% C 0.136 H 254.9°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#5B9BEB
RGB	rgb(91, 155, 235)
HSL	hsl(213, 78%, 64%)
HSV	hsv(213, 61%, 92%)
CMYK	cmyk(61.3%, 34%, 0%, 7.8%)
CIE-LAB	lab(63.06, 3.48, -46.43)
CIE-LCH	lch(63.06, 46.56, 274.29°)
OKLab	oklab(68.2% -0.0355 -0.1314)
OKLCH	oklch(68.2% 0.136 254.9)
XYZ	xyz(31.0257, 31.6621, 83.0575)
Luminance	0.3166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9BEB #EBAB5B

analogous

#5BE3EB #5B9BEB #635BEB

triadic

#5B9BEB #EB5B9B #9BEB5B

tetradic

#5B9BEB #EB5BE3 #EBAB5B #5BEB63

square

#5B9BEB #EB5BE3 #EBAB5B #5BEB63

split-complementary

#5B9BEB #EB635B #E3EB5B

monochromatic

#165DB5 #247AE4 #5B9BEB #92BCF2 #C8DEF8

Accessibility & contrast

On white

2.86

#5B9BEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#5B9BEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9BEB

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9BEB	#FFFFFF	#000000	##000000
##5B9BEB	1.00	2.86	7.33	7.33
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79A0EE

Deuteranopia (green-blind)

#6592E9

Tritanopia (blue-blind)

#00ADB8

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #5b9beb;
/* rgb */ color: rgb(91, 155, 235);
/* oklch */ color: oklch(68.2% 0.136 254.9);

Tailwind

colors: {
  custom: {
    50: '#95b8f2',
    500: '#5b9beb',
    950: '#000000',
  },
}

SCSS

$custom: #5b9beb;
$custom-light: #95b8f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9beb",
  "rgb": {
    "r": 91,
    "g": 155,
    "b": 235
  },
  "hsl": {
    "h": 213.333,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.68204,
    "c": 0.13614,
    "h": 254.9
  },
  "luminance": 0.31665
}

Semantic roles & 50–950 ramp

primary

#5B9BEB

secondary

#EAD4B8

accent

#7E0BDB

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5B9BEB

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

Preview Lab → · Contrast checker → · Palette generator →