#5BB3CB#5BB3CB

#5BB3CB is a light, moderate cyan. Relative luminance 0.388; OKLCH L 72.1% C 0.091 H 218.0°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3CB
RGB	rgb(91, 179, 203)
HSL	hsl(193, 52%, 58%)
HSV	hsv(193, 55%, 80%)
CMYK	cmyk(55.2%, 11.8%, 0%, 20.4%)
CIE-LAB	lab(68.59, -19.65, -20.22)
CIE-LCH	lch(68.59, 28.20, 225.82°)
OKLab	oklab(72.14% -0.0718 -0.056)
OKLCH	oklch(72.14% 0.091 218)
XYZ	xyz(31.2098, 38.7733, 62.3276)
Luminance	0.3878 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3CB #CB735B

analogous

#5BCBAB #5BB3CB #5B7BCB

triadic

#5BB3CB #CB5BB3 #B3CB5B

tetradic

#5BB3CB #AB5BCB #CB735B #7BCB5B

square

#5BB3CB #AB5BCB #CB735B #7BCB5B

split-complementary

#5BB3CB #CB5B7B #CBAB5B

monochromatic

#296F82 #3897B1 #5BB3CB #89C9DA #B8DEE8

Accessibility & contrast

On white

2.40

#5BB3CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#5BB3CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3CB

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3CB	#FFFFFF	#000000	##000000
##5BB3CB	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3AECC

Deuteranopia (green-blind)

#93A2CB

Tritanopia (blue-blind)

#00BBBA

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #5bb3cb;
/* rgb */ color: rgb(91, 179, 203);
/* oklch */ color: oklch(72.1% 0.091 218.0);

Tailwind

colors: {
  custom: {
    50: '#92cada',
    500: '#5bb3cb',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3cb;
$custom-light: #92cada;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3cb",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 203
  },
  "hsl": {
    "h": 192.857,
    "s": 51.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.72142,
    "c": 0.0911,
    "h": 218
  },
  "luminance": 0.38776
}

Semantic roles & 50–950 ramp

primary

#5BB3CB

secondary

#D7B4AA

accent

#6B4CDB

background

#F9FCFD

surface

#F2F8FA

border

#CCD1D3

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #5BB3CB

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

Preview Lab → · Contrast checker → · Palette generator →