#5BD9F4#5BD9F4

#5BD9F4 is a very light, moderate cyan. Relative luminance 0.584; OKLCH L 82.5% C 0.116 H 214.3°. Best body text is #000000 at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#5BD9F4
RGB	rgb(91, 217, 244)
HSL	hsl(191, 87%, 66%)
HSV	hsv(191, 63%, 96%)
CMYK	cmyk(62.7%, 11.1%, 0%, 4.3%)
CIE-LAB	lab(80.95, -26.89, -23.58)
CIE-LCH	lch(80.95, 35.77, 221.26°)
OKLab	oklab(82.52% -0.0961 -0.0655)
OKLCH	oklch(82.52% 0.116 214.3)
XYZ	xyz(45.4496, 58.3767, 94.4430)
Luminance	0.5838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD9F4 #F4765B

analogous

#5BF4C2 #5BD9F4 #5B8CF4

triadic

#5BD9F4 #F45BD9 #D9F45B

tetradic

#5BD9F4 #C25BF4 #F4765B #8CF45B

square

#5BD9F4 #C25BF4 #F4765B #8CF45B

split-complementary

#5BD9F4 #F45B8C #F4C25B

monochromatic

#0DA6C7 #22CCF0 #5BD9F4 #94E6F8 #CEF4FC

Accessibility & contrast

On white

1.66

#5BD9F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.68

#5BD9F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD9F4

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD9F4	#FFFFFF	#000000	##000000
##5BD9F4	1.00	1.66	12.68	12.68
#FFFFFF	1.66	1.00	21.00	21.00
#000000	12.68	21.00	1.00	1.00
##000000	12.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D2F6

Deuteranopia (green-blind)

#AFC2F4

Tritanopia (blue-blind)

#00E3E1

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #5bd9f4;
/* rgb */ color: rgb(91, 217, 244);
/* oklch */ color: oklch(82.5% 0.116 214.3);

Tailwind

colors: {
  custom: {
    50: '#99e5f7',
    500: '#5bd9f4',
    950: '#000000',
  },
}

SCSS

$custom: #5bd9f4;
$custom-light: #99e5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd9f4",
  "rgb": {
    "r": 91,
    "g": 217,
    "b": 244
  },
  "hsl": {
    "h": 190.588,
    "s": 87.429,
    "l": 65.686
  },
  "oklch": {
    "l": 0.82517,
    "c": 0.11629,
    "h": 214.3
  },
  "luminance": 0.58382
}

Semantic roles & 50–950 ramp

primary

#5BD9F4

secondary

#C4492F

accent

#2902E4

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD9F4

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

Preview Lab → · Contrast checker → · Palette generator →