#5BB3D9#5BB3D9

#5BB3D9 is a light, moderate cyan. Relative luminance 0.395; OKLCH L 72.7% C 0.101 H 228.7°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3D9
RGB	rgb(91, 179, 217)
HSL	hsl(198, 62%, 60%)
HSV	hsv(198, 58%, 85%)
CMYK	cmyk(58.1%, 17.5%, 0%, 14.9%)
CIE-LAB	lab(69.09, -15.51, -27.14)
CIE-LCH	lch(69.09, 31.26, 240.25°)
OKLab	oklab(72.71% -0.0666 -0.0756)
OKLCH	oklch(72.71% 0.101 228.7)
XYZ	xyz(32.9540, 39.4710, 71.5142)
Luminance	0.3947 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3D9 #D9815B

analogous

#5BD9C0 #5BB3D9 #5B74D9

triadic

#5BB3D9 #D95BB3 #B3D95B

tetradic

#5BB3D9 #C05BD9 #D9815B #74D95B

square

#5BB3D9 #C05BD9 #D9815B #74D95B

split-complementary

#5BB3D9 #D95B74 #D9C05B

monochromatic

#237497 #2E9AC8 #5BB3D9 #8DCAE5 #BEE1F0

Accessibility & contrast

On white

2.36

#5BB3D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#5BB3D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3D9

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3D9	#FFFFFF	#000000	##000000
##5BB3D9	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB0DB

Deuteranopia (green-blind)

#8DA3D9

Tritanopia (blue-blind)

#00BEBF

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #5bb3d9;
/* rgb */ color: rgb(91, 179, 217);
/* oklch */ color: oklch(72.7% 0.101 228.7);

Tailwind

colors: {
  custom: {
    50: '#94c9e4',
    500: '#5bb3d9',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3d9;
$custom-light: #94c9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3d9",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 217
  },
  "hsl": {
    "h": 198.095,
    "s": 62.376,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72712,
    "c": 0.10076,
    "h": 228.7
  },
  "luminance": 0.39474
}

Semantic roles & 50–950 ramp

primary

#5BB3D9

secondary

#E0BEB0

accent

#501BCA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #5BB3D9

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

Preview Lab → · Contrast checker → · Palette generator →