#5BBFE9#5BBFE9

#5BBFE9 is a light, moderate cyan. Relative luminance 0.454; OKLCH L 76.1% C 0.111 H 228.4°. Best body text is #000000 at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#5BBFE9
RGB	rgb(91, 191, 233)
HSL	hsl(198, 76%, 64%)
HSV	hsv(198, 61%, 91%)
CMYK	cmyk(60.9%, 18%, 0%, 8.6%)
CIE-LAB	lab(73.13, -16.99, -29.64)
CIE-LCH	lch(73.13, 34.17, 240.18°)
OKLab	oklab(76.13% -0.0735 -0.0827)
OKLCH	oklch(76.13% 0.111 228.4)
XYZ	xyz(37.6474, 45.3652, 83.8473)
Luminance	0.4537 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBFE9 #E9855B

analogous

#5BE9CC #5BBFE9 #5B78E9

triadic

#5BBFE9 #E95BBF #BFE95B

tetradic

#5BBFE9 #CC5BE9 #E9855B #78E95B

square

#5BBFE9 #CC5BE9 #E9855B #78E95B

split-complementary

#5BBFE9 #E95B78 #E9CC5B

monochromatic

#1884B2 #25AAE2 #5BBFE9 #91D4F0 #C7E9F7

Accessibility & contrast

On white

2.08

#5BBFE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.07

#5BBFE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBFE9

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBFE9	#FFFFFF	#000000	##000000
##5BBFE9	1.00	2.08	10.07	10.07
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.07	21.00	1.00	1.00
##000000	10.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BCEB

Deuteranopia (green-blind)

#95ADE8

Tritanopia (blue-blind)

#00CBCD

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #5bbfe9;
/* rgb */ color: rgb(91, 191, 233);
/* oklch */ color: oklch(76.1% 0.111 228.4);

Tailwind

colors: {
  custom: {
    50: '#96d2f0',
    500: '#5bbfe9',
    950: '#000000',
  },
}

SCSS

$custom: #5bbfe9;
$custom-light: #96d2f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbfe9",
  "rgb": {
    "r": 91,
    "g": 191,
    "b": 233
  },
  "hsl": {
    "h": 197.746,
    "s": 76.344,
    "l": 63.529
  },
  "oklch": {
    "l": 0.76131,
    "c": 0.11068,
    "h": 228.4
  },
  "luminance": 0.45369
}

Semantic roles & 50–950 ramp

primary

#5BBFE9

secondary

#E9C6B7

accent

#490DD9

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1416

muted

#7E8284

Preview Lab

Preview with #5BBFE9

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

Preview Lab → · Contrast checker → · Palette generator →