#5BBBD1#5BBBD1

#5BBBD1 is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.2% C 0.095 H 214.8°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#5BBBD1
RGB	rgb(91, 187, 209)
HSL	hsl(191, 56%, 59%)
HSV	hsv(191, 56%, 82%)
CMYK	cmyk(56.5%, 10.5%, 0%, 18%)
CIE-LAB	lab(71.12, -22.03, -19.66)
CIE-LCH	lch(71.12, 29.52, 221.75°)
OKLab	oklab(74.24% -0.0783 -0.0545)
OKLCH	oklch(74.24% 0.095 214.8)
XYZ	xyz(33.5887, 42.3650, 66.7164)
Luminance	0.4237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBBD1 #D1715B

analogous

#5BD1AC #5BBBD1 #5B80D1

triadic

#5BBBD1 #D15BBB #BBD15B

tetradic

#5BBBD1 #AC5BD1 #D1715B #80D15B

square

#5BBBD1 #AC5BD1 #D1715B #80D15B

split-complementary

#5BBBD1 #D15B80 #D1AC5B

monochromatic

#27788B #34A1BA #5BBBD1 #8BCFDE #BBE3EC

Accessibility & contrast

On white

2.22

#5BBBD1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#5BBBD1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBBD1

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBBD1	#FFFFFF	#000000	##000000
##5BBBD1	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABB6D2

Deuteranopia (green-blind)

#99A8D1

Tritanopia (blue-blind)

#00C3C2

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #5bbbd1;
/* rgb */ color: rgb(91, 187, 209);
/* oklch */ color: oklch(74.2% 0.095 214.8);

Tailwind

colors: {
  custom: {
    50: '#93cfdf',
    500: '#5bbbd1',
    950: '#000000',
  },
}

SCSS

$custom: #5bbbd1;
$custom-light: #93cfdf;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbbd1",
  "rgb": {
    "r": 91,
    "g": 187,
    "b": 209
  },
  "hsl": {
    "h": 191.186,
    "s": 56.19,
    "l": 58.824
  },
  "oklch": {
    "l": 0.7424,
    "c": 0.09536,
    "h": 214.8
  },
  "luminance": 0.42368
}

Semantic roles & 50–950 ramp

primary

#5BBBD1

secondary

#DBB5AD

accent

#6548DF

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #5BBBD1

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

Preview Lab → · Contrast checker → · Palette generator →