#5BBBEF#5BBBEF

#5BBBEF is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.5% C 0.117 H 235.0°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#5BBBEF
RGB	rgb(91, 187, 239)
HSL	hsl(201, 82%, 65%)
HSV	hsv(201, 62%, 94%)
CMYK	cmyk(61.9%, 21.8%, 0%, 6.3%)
CIE-LAB	lab(72.22, -13.04, -34.29)
CIE-LCH	lch(72.22, 36.69, 249.18°)
OKLab	oklab(75.48% -0.0673 -0.0961)
OKLCH	oklch(75.48% 0.117 235)
XYZ	xyz(37.6587, 43.9930, 88.1515)
Luminance	0.4400 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBBEF #EF8F5B

analogous

#5BEFD9 #5BBBEF #5B71EF

triadic

#5BBBEF #EF5BBB #BBEF5B

tetradic

#5BBBEF #D95BEF #EF8F5B #71EF5B

square

#5BBBEF #D95BEF #EF8F5B #71EF5B

split-complementary

#5BBBEF #EF5B71 #EFD95B

monochromatic

#1281BD #23A4EA #5BBBEF #93D2F4 #CBE9FA

Accessibility & contrast

On white

2.14

#5BBBEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#5BBBEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBBEF

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBBEF	#FFFFFF	#000000	##000000
##5BBBEF	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2BAF1

Deuteranopia (green-blind)

#8EAAEE

Tritanopia (blue-blind)

#00C9CC

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #5bbbef;
/* rgb */ color: rgb(91, 187, 239);
/* oklch */ color: oklch(75.5% 0.117 235.0);

Tailwind

colors: {
  custom: {
    50: '#96cff4',
    500: '#5bbbef',
    950: '#000000',
  },
}

SCSS

$custom: #5bbbef;
$custom-light: #96cff4;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbbef",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 239
  },
  "hsl": {
    "h": 201.081,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.75484,
    "c": 0.1173,
    "h": 235
  },
  "luminance": 0.43997
}

Semantic roles & 50–950 ramp

primary

#5BBBEF

secondary

#ECCBBA

accent

#5307DF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #5BBBEF

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

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