#5BD3EF#5BD3EF

#5BD3EF is a light, moderate cyan. Relative luminance 0.550; OKLCH L 80.9% C 0.113 H 215.7°. Best body text is #000000 at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#5BD3EF
RGB	rgb(91, 211, 239)
HSL	hsl(191, 82%, 65%)
HSV	hsv(191, 62%, 94%)
CMYK	cmyk(61.9%, 11.7%, 0%, 6.3%)
CIE-LAB	lab(79.06, -25.38, -23.79)
CIE-LCH	lch(79.06, 34.79, 223.14°)
OKLab	oklab(80.95% -0.0919 -0.0661)
OKLCH	oklch(80.95% 0.113 215.7)
XYZ	xyz(43.1823, 55.0402, 89.9927)
Luminance	0.5504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD3EF #EF775B

analogous

#5BEFC1 #5BD3EF #5B89EF

triadic

#5BD3EF #EF5BD3 #D3EF5B

tetradic

#5BD3EF #C15BEF #EF775B #89EF5B

square

#5BD3EF #C15BEF #EF775B #89EF5B

split-complementary

#5BD3EF #EF5B89 #EFC15B

monochromatic

#129DBD #23C4EA #5BD3EF #93E2F4 #CBF1FA

Accessibility & contrast

On white

1.75

#5BD3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.01

#5BD3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD3EF

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD3EF	#FFFFFF	#000000	##000000
##5BD3EF	1.00	1.75	12.01	12.01
#FFFFFF	1.75	1.00	21.00	21.00
#000000	12.01	21.00	1.00	1.00
##000000	12.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C0CDF1

Deuteranopia (green-blind)

#AABDEF

Tritanopia (blue-blind)

#00DDDC

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #5bd3ef;
/* rgb */ color: rgb(91, 211, 239);
/* oklch */ color: oklch(80.9% 0.113 215.7);

Tailwind

colors: {
  custom: {
    50: '#98e0f4',
    500: '#5bd3ef',
    950: '#000000',
  },
}

SCSS

$custom: #5bd3ef;
$custom-light: #98e0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd3ef",
  "rgb": {
    "r": 91,
    "g": 211,
    "b": 239
  },
  "hsl": {
    "h": 191.351,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.80949,
    "c": 0.1132,
    "h": 215.7
  },
  "luminance": 0.55045
}

Semantic roles & 50–950 ramp

primary

#5BD3EF

secondary

#BC4C33

accent

#3007DF

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD3EF

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

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