#5BD9F9#5BD9F9

#5BD9F9 is a very light, moderate cyan. Relative luminance 0.587; OKLCH L 82.7% C 0.119 H 217.5°. Best body text is #000000 at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#5BD9F9
RGB	rgb(91, 217, 249)
HSL	hsl(192, 93%, 67%)
HSV	hsv(192, 63%, 98%)
CMYK	cmyk(63.5%, 12.9%, 0%, 2.4%)
CIE-LAB	lab(81.12, -25.43, -25.98)
CIE-LCH	lch(81.12, 36.35, 225.62°)
OKLab	oklab(82.71% -0.0942 -0.0723)
OKLCH	oklch(82.71% 0.119 217.5)
XYZ	xyz(46.2191, 58.6845, 98.4956)
Luminance	0.5869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD9F9 #F97B5B

analogous

#5BF9CA #5BD9F9 #5B8AF9

triadic

#5BD9F9 #F95BD9 #D9F95B

tetradic

#5BD9F9 #CA5BF9 #F97B5B #8AF95B

square

#5BD9F9 #CA5BF9 #F97B5B #8AF95B

split-complementary

#5BD9F9 #F95B8A #F9CA5B

monochromatic

#08A9D2 #20CBF7 #5BD9F9 #96E7FB #D1F4FD

Accessibility & contrast

On white

1.65

#5BD9F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.74

#5BD9F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD9F9

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD9F9	#FFFFFF	#000000	##000000
##5BD9F9	1.00	1.65	12.74	12.74
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.74	21.00	1.00	1.00
##000000	12.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4D3FB

Deuteranopia (green-blind)

#ADC2F9

Tritanopia (blue-blind)

#00E4E3

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #5bd9f9;
/* rgb */ color: rgb(91, 217, 249);
/* oklch */ color: oklch(82.7% 0.119 217.5);

Tailwind

colors: {
  custom: {
    50: '#99e5fb',
    500: '#5bd9f9',
    950: '#000000',
  },
}

SCSS

$custom: #5bd9f9;
$custom-light: #99e5fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd9f9",
  "rgb": {
    "r": 91,
    "g": 217,
    "b": 249
  },
  "hsl": {
    "h": 192.152,
    "s": 92.941,
    "l": 66.667
  },
  "oklch": {
    "l": 0.8271,
    "c": 0.11872,
    "h": 217.5
  },
  "luminance": 0.58689
}

Semantic roles & 50–950 ramp

primary

#5BD9F9

secondary

#CD4C2B

accent

#2E00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD9F9

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

Preview Lab → · Contrast checker → · Palette generator →