#5B9DEF#5B9DEF

#5B9DEF is a light, vivid cyan. Relative luminance 0.326; OKLCH L 68.8% C 0.139 H 254.8°. Best body text is #000000 at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#5B9DEF
RGB	rgb(91, 157, 239)
HSL	hsl(213, 82%, 65%)
HSV	hsv(213, 62%, 94%)
CMYK	cmyk(61.9%, 34.3%, 0%, 6.3%)
CIE-LAB	lab(63.81, 3.63, -47.45)
CIE-LCH	lch(63.81, 47.59, 274.38°)
OKLab	oklab(68.85% -0.0365 -0.1344)
OKLCH	oklch(68.85% 0.139 254.8)
XYZ	xyz(31.9457, 32.5671, 86.2472)
Luminance	0.3257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9DEF #EFAD5B

analogous

#5BE7EF #5B9DEF #635BEF

triadic

#5B9DEF #EF5B9D #9DEF5B

tetradic

#5B9DEF #EF5BE7 #EFAD5B #5BEF63

square

#5B9DEF #EF5BE7 #EFAD5B #5BEF63

split-complementary

#5B9DEF #EF635B #E7EF5B

monochromatic

#125FBD #237CEA #5B9DEF #93BEF4 #CBE0FA

Accessibility & contrast

On white

2.79

#5B9DEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.51

#5B9DEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9DEF

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9DEF	#FFFFFF	#000000	##000000
##5B9DEF	1.00	2.79	7.51	7.51
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.51	21.00	1.00	1.00
##000000	7.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA2F2

Deuteranopia (green-blind)

#6694ED

Tritanopia (blue-blind)

#00B0BB

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #5b9def;
/* rgb */ color: rgb(91, 157, 239);
/* oklch */ color: oklch(68.8% 0.139 254.8);

Tailwind

colors: {
  custom: {
    50: '#96b9f4',
    500: '#5b9def',
    950: '#000000',
  },
}

SCSS

$custom: #5b9def;
$custom-light: #96b9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9def",
  "rgb": {
    "r": 91,
    "g": 157,
    "b": 239
  },
  "hsl": {
    "h": 213.243,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.6885,
    "c": 0.13927,
    "h": 254.8
  },
  "luminance": 0.3257
}

Semantic roles & 50–950 ramp

primary

#5B9DEF

secondary

#ECD6BA

accent

#7E07DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5B9DEF

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

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