#5BD4F9#5BD4F9

#5BD4F9 is a light, moderate cyan. Relative luminance 0.562; OKLCH L 81.6% C 0.119 H 221.3°. Best body text is #000000 at 12.23:1 contrast (WCAG AA passes).

Color values

HEX	#5BD4F9
RGB	rgb(91, 212, 249)
HSL	hsl(194, 93%, 67%)
HSV	hsv(194, 63%, 98%)
CMYK	cmyk(63.5%, 14.9%, 0%, 2.4%)
CIE-LAB	lab(79.70, -22.93, -28.15)
CIE-LCH	lch(79.70, 36.31, 230.84°)
OKLab	oklab(81.57% -0.0892 -0.0785)
OKLCH	oklch(81.57% 0.119 221.3)
XYZ	xyz(44.9498, 56.1459, 98.0725)
Luminance	0.5615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD4F9 #F9805B

analogous

#5BF9CF #5BD4F9 #5B85F9

triadic

#5BD4F9 #F95BD4 #D4F95B

tetradic

#5BD4F9 #CF5BF9 #F9805B #85F95B

square

#5BD4F9 #CF5BF9 #F9805B #85F95B

split-complementary

#5BD4F9 #F95B85 #F9CF5B

monochromatic

#08A3D2 #20C5F7 #5BD4F9 #96E3FB #D1F3FD

Accessibility & contrast

On white

1.72

#5BD4F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.23

#5BD4F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD4F9

12.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD4F9	#FFFFFF	#000000	##000000
##5BD4F9	1.00	1.72	12.23	12.23
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.23	21.00	1.00	1.00
##000000	12.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BECFFB

Deuteranopia (green-blind)

#A8BEF9

Tritanopia (blue-blind)

#00E0E0

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #5bd4f9;
/* rgb */ color: rgb(91, 212, 249);
/* oklch */ color: oklch(81.6% 0.119 221.3);

Tailwind

colors: {
  custom: {
    50: '#99e1fb',
    500: '#5bd4f9',
    950: '#000000',
  },
}

SCSS

$custom: #5bd4f9;
$custom-light: #99e1fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd4f9",
  "rgb": {
    "r": 91,
    "g": 212,
    "b": 249
  },
  "hsl": {
    "h": 194.051,
    "s": 92.941,
    "l": 66.667
  },
  "oklch": {
    "l": 0.81571,
    "c": 0.11877,
    "h": 221.3
  },
  "luminance": 0.56151
}

Semantic roles & 50–950 ramp

primary

#5BD4F9

secondary

#CD512B

accent

#3600E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD4F9

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

Preview Lab → · Contrast checker → · Palette generator →