#5BB3CF#5BB3CF

#5BB3CF is a light, moderate cyan. Relative luminance 0.390; OKLCH L 72.3% C 0.093 H 221.3°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3CF
RGB	rgb(91, 179, 207)
HSL	hsl(194, 55%, 58%)
HSV	hsv(194, 56%, 81%)
CMYK	cmyk(56%, 13.5%, 0%, 18.8%)
CIE-LAB	lab(68.73, -18.48, -22.21)
CIE-LCH	lch(68.73, 28.89, 230.23°)
OKLab	oklab(72.3% -0.0703 -0.0616)
OKLCH	oklch(72.3% 0.093 221.3)
XYZ	xyz(31.6926, 38.9664, 64.8705)
Luminance	0.3897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3CF #CF775B

analogous

#5BCFB1 #5BB3CF #5B79CF

triadic

#5BB3CF #CF5BB3 #B3CF5B

tetradic

#5BB3CF #B15BCF #CF775B #79CF5B

square

#5BB3CF #B15BCF #CF775B #79CF5B

split-complementary

#5BB3CF #CF5B79 #CFB15B

monochromatic

#287188 #3698B7 #5BB3CF #8AC9DD #BADFEB

Accessibility & contrast

On white

2.39

#5BB3CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#5BB3CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3CF

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3CF	#FFFFFF	#000000	##000000
##5BB3CF	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2AFD1

Deuteranopia (green-blind)

#91A2CF

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #5bb3cf;
/* rgb */ color: rgb(91, 179, 207);
/* oklch */ color: oklch(72.3% 0.093 221.3);

Tailwind

colors: {
  custom: {
    50: '#93c9dd',
    500: '#5bb3cf',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3cf;
$custom-light: #93c9dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3cf",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 207
  },
  "hsl": {
    "h": 194.483,
    "s": 54.717,
    "l": 58.431
  },
  "oklch": {
    "l": 0.723,
    "c": 0.09349,
    "h": 221.3
  },
  "luminance": 0.38969
}

Semantic roles & 50–950 ramp

primary

#5BB3CF

secondary

#DAB7AC

accent

#6E4ADE

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #5BB3CF

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

Preview Lab → · Contrast checker → · Palette generator →