#5BB1D9#5BB1D9

#5BB1D9 is a light, moderate cyan. Relative luminance 0.387; OKLCH L 72.3% C 0.101 H 230.5°. Best body text is #000000 at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#5BB1D9
RGB	rgb(91, 177, 217)
HSL	hsl(199, 62%, 60%)
HSV	hsv(199, 58%, 85%)
CMYK	cmyk(58.1%, 18.4%, 0%, 14.9%)
CIE-LAB	lab(68.52, -14.45, -28.03)
CIE-LCH	lch(68.52, 31.53, 242.72°)
OKLab	oklab(72.25% -0.0644 -0.0782)
OKLCH	oklch(72.25% 0.101 230.5)
XYZ	xyz(32.5561, 38.6751, 71.3815)
Luminance	0.3868 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB1D9 #D9835B

analogous

#5BD9C2 #5BB1D9 #5B72D9

triadic

#5BB1D9 #D95BB1 #B1D95B

tetradic

#5BB1D9 #C25BD9 #D9835B #72D95B

square

#5BB1D9 #C25BD9 #D9835B #72D95B

split-complementary

#5BB1D9 #D95B72 #D9C25B

monochromatic

#237297 #2E97C8 #5BB1D9 #8DC9E5 #BEE0F0

Accessibility & contrast

On white

2.40

#5BB1D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.74

#5BB1D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB1D9

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB1D9	#FFFFFF	#000000	##000000
##5BB1D9	1.00	2.40	8.74	8.74
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.74	21.00	1.00	1.00
##000000	8.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAFDB

Deuteranopia (green-blind)

#8BA1D8

Tritanopia (blue-blind)

#00BCBE

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #5bb1d9;
/* rgb */ color: rgb(91, 177, 217);
/* oklch */ color: oklch(72.3% 0.101 230.5);

Tailwind

colors: {
  custom: {
    50: '#93c8e4',
    500: '#5bb1d9',
    950: '#000000',
  },
}

SCSS

$custom: #5bb1d9;
$custom-light: #93c8e4;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb1d9",
  "rgb": {
    "r": 91,
    "g": 177,
    "b": 217
  },
  "hsl": {
    "h": 199.048,
    "s": 62.376,
    "l": 60.392
  },
  "oklch": {
    "l": 0.72253,
    "c": 0.10128,
    "h": 230.5
  },
  "luminance": 0.38678
}

Semantic roles & 50–950 ramp

primary

#5BB1D9

secondary

#E0BFB0

accent

#531BCA

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #5BB1D9

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

Preview Lab → · Contrast checker → · Palette generator →