#5B9CEB#5B9CEB

#5B9CEB is a light, vivid cyan. Relative luminance 0.320; OKLCH L 68.4% C 0.135 H 254.3°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#5B9CEB
RGB	rgb(91, 156, 235)
HSL	hsl(213, 78%, 64%)
HSV	hsv(213, 61%, 92%)
CMYK	cmyk(61.3%, 33.6%, 0%, 7.8%)
CIE-LAB	lab(63.34, 2.90, -45.99)
CIE-LCH	lch(63.34, 46.08, 273.61°)
OKLab	oklab(68.42% -0.0365 -0.1301)
OKLCH	oklch(68.42% 0.135 254.3)
XYZ	xyz(31.1929, 31.9963, 83.1132)
Luminance	0.3200 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9CEB #EBAA5B

analogous

#5BE4EB #5B9CEB #625BEB

triadic

#5B9CEB #EB5B9C #9CEB5B

tetradic

#5B9CEB #EB5BE4 #EBAA5B #5BEB62

square

#5B9CEB #EB5BE4 #EBAA5B #5BEB62

split-complementary

#5B9CEB #EB625B #E4EB5B

monochromatic

#165EB5 #247BE4 #5B9CEB #92BDF2 #C8DEF8

Accessibility & contrast

On white

2.84

#5B9CEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#5B9CEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9CEB

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9CEB	#FFFFFF	#000000	##000000
##5B9CEB	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA1EE

Deuteranopia (green-blind)

#6793E9

Tritanopia (blue-blind)

#00AEB9

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #5b9ceb;
/* rgb */ color: rgb(91, 156, 235);
/* oklch */ color: oklch(68.4% 0.135 254.3);

Tailwind

colors: {
  custom: {
    50: '#95b8f2',
    500: '#5b9ceb',
    950: '#000000',
  },
}

SCSS

$custom: #5b9ceb;
$custom-light: #95b8f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9ceb",
  "rgb": {
    "r": 91,
    "g": 156,
    "b": 235
  },
  "hsl": {
    "h": 212.917,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.6842,
    "c": 0.13517,
    "h": 254.3
  },
  "luminance": 0.31999
}

Semantic roles & 50–950 ramp

primary

#5B9CEB

secondary

#EAD3B8

accent

#7D0BDB

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5B9CEB

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

Preview Lab → · Contrast checker → · Palette generator →