#5BD1EB#5BD1EB

#5BD1EB is a light, moderate cyan. Relative luminance 0.538; OKLCH L 80.3% C 0.111 H 214.6°. Best body text is #000000 at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#5BD1EB
RGB	rgb(91, 209, 235)
HSL	hsl(191, 78%, 64%)
HSV	hsv(191, 61%, 92%)
CMYK	cmyk(61.3%, 11.1%, 0%, 7.8%)
CIE-LAB	lab(78.36, -25.55, -22.73)
CIE-LCH	lch(78.36, 34.20, 221.65°)
OKLab	oklab(80.34% -0.0914 -0.0631)
OKLCH	oklch(80.34% 0.111 214.6)
XYZ	xyz(42.1041, 53.8189, 86.7503)
Luminance	0.5382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD1EB #EB755B

analogous

#5BEBBD #5BD1EB #5B89EB

triadic

#5BD1EB #EB5BD1 #D1EB5B

tetradic

#5BD1EB #BD5BEB #EB755B #89EB5B

square

#5BD1EB #BD5BEB #EB755B #89EB5B

split-complementary

#5BD1EB #EB5B89 #EBBD5B

monochromatic

#1699B5 #24C2E4 #5BD1EB #92E0F2 #C8F0F8

Accessibility & contrast

On white

1.79

#5BD1EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.76

#5BD1EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD1EB

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD1EB	#FFFFFF	#000000	##000000
##5BD1EB	1.00	1.79	11.76	11.76
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.76	21.00	1.00	1.00
##000000	11.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BECBED

Deuteranopia (green-blind)

#A9BBEB

Tritanopia (blue-blind)

#00DBD9

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #5bd1eb;
/* rgb */ color: rgb(91, 209, 235);
/* oklch */ color: oklch(80.3% 0.111 214.6);

Tailwind

colors: {
  custom: {
    50: '#97dff1',
    500: '#5bd1eb',
    950: '#000000',
  },
}

SCSS

$custom: #5bd1eb;
$custom-light: #97dff1;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd1eb",
  "rgb": {
    "r": 91,
    "g": 209,
    "b": 235
  },
  "hsl": {
    "h": 190.833,
    "s": 78.261,
    "l": 63.922
  },
  "oklch": {
    "l": 0.80335,
    "c": 0.11106,
    "h": 214.6
  },
  "luminance": 0.53823
}

Semantic roles & 50–950 ramp

primary

#5BD1EB

secondary

#B54C35

accent

#300BDB

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #5BD1EB

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

Preview Lab → · Contrast checker → · Palette generator →