#5B9DEE#5B9DEE

#5B9DEE is a light, vivid cyan. Relative luminance 0.325; OKLCH L 68.8% C 0.138 H 254.5°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#5B9DEE
RGB	rgb(91, 157, 238)
HSL	hsl(213, 81%, 65%)
HSV	hsv(213, 62%, 93%)
CMYK	cmyk(61.8%, 34%, 0%, 6.7%)
CIE-LAB	lab(63.76, 3.31, -46.98)
CIE-LCH	lch(63.76, 47.09, 274.03°)
OKLab	oklab(68.8% -0.0368 -0.133)
OKLCH	oklch(68.8% 0.138 254.5)
XYZ	xyz(31.7984, 32.5081, 85.4713)
Luminance	0.3251 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9DEE #EEAC5B

analogous

#5BE7EE #5B9DEE #635BEE

triadic

#5B9DEE #EE5B9D #9DEE5B

tetradic

#5B9DEE #EE5BE7 #EEAC5B #5BEE63

square

#5B9DEE #EE5BE7 #EEAC5B #5BEE63

split-complementary

#5B9DEE #EE635B #E7EE5B

monochromatic

#135FBB #247CE8 #5B9DEE #92BEF4 #CADFF9

Accessibility & contrast

On white

2.80

#5B9DEE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#5B9DEE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9DEE

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9DEE	#FFFFFF	#000000	##000000
##5B9DEE	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA2F1

Deuteranopia (green-blind)

#6694EC

Tritanopia (blue-blind)

#00B0BA

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #5b9dee;
/* rgb */ color: rgb(91, 157, 238);
/* oklch */ color: oklch(68.8% 0.138 254.5);

Tailwind

colors: {
  custom: {
    50: '#96b9f4',
    500: '#5b9dee',
    950: '#000000',
  },
}

SCSS

$custom: #5b9dee;
$custom-light: #96b9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9dee",
  "rgb": {
    "r": 91,
    "g": 157,
    "b": 238
  },
  "hsl": {
    "h": 213.061,
    "s": 81.215,
    "l": 64.51
  },
  "oklch": {
    "l": 0.68796,
    "c": 0.13801,
    "h": 254.5
  },
  "luminance": 0.32511
}

Semantic roles & 50–950 ramp

primary

#5B9DEE

secondary

#ECD5B9

accent

#7E08DE

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5B9DEE

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

Preview Lab → · Contrast checker → · Palette generator →