#5BD9F3#5BD9F3

#5BD9F3 is a very light, moderate cyan. Relative luminance 0.583; OKLCH L 82.5% C 0.116 H 213.6°. Best body text is #000000 at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#5BD9F3
RGB	rgb(91, 217, 243)
HSL	hsl(190, 86%, 65%)
HSV	hsv(190, 63%, 95%)
CMYK	cmyk(62.6%, 10.7%, 0%, 4.7%)
CIE-LAB	lab(80.91, -27.18, -23.10)
CIE-LCH	lch(80.91, 35.67, 220.37°)
OKLab	oklab(82.48% -0.0964 -0.0642)
OKLCH	oklch(82.48% 0.116 213.6)
XYZ	xyz(45.2982, 58.3161, 93.6455)
Luminance	0.5832 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD9F3 #F3755B

analogous

#5BF3C1 #5BD9F3 #5B8DF3

triadic

#5BD9F3 #F35BD9 #D9F35B

tetradic

#5BD9F3 #C15BF3 #F3755B #8DF35B

square

#5BD9F3 #C15BF3 #F3755B #8DF35B

split-complementary

#5BD9F3 #F35B8D #F3C15B

monochromatic

#0EA6C5 #22CCEF #5BD9F3 #94E6F7 #CDF3FB

Accessibility & contrast

On white

1.66

#5BD9F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.66

#5BD9F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD9F3

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD9F3	#FFFFFF	#000000	##000000
##5BD9F3	1.00	1.66	12.66	12.66
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.66	21.00	1.00	1.00
##000000	12.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6D2F5

Deuteranopia (green-blind)

#AFC2F3

Tritanopia (blue-blind)

#00E3E1

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #5bd9f3;
/* rgb */ color: rgb(91, 217, 243);
/* oklch */ color: oklch(82.5% 0.116 213.6);

Tailwind

colors: {
  custom: {
    50: '#99e5f7',
    500: '#5bd9f3',
    950: '#000000',
  },
}

SCSS

$custom: #5bd9f3;
$custom-light: #99e5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd9f3",
  "rgb": {
    "r": 91,
    "g": 217,
    "b": 243
  },
  "hsl": {
    "h": 190.263,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.82479,
    "c": 0.11585,
    "h": 213.6
  },
  "luminance": 0.58321
}

Semantic roles & 50–950 ramp

primary

#5BD9F3

secondary

#C24930

accent

#2903E3

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD9F3

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

Preview Lab → · Contrast checker → · Palette generator →