#5BBDF9#5BBDF9

#5BBDF9 is a light, vivid cyan. Relative luminance 0.455; OKLCH L 76.4% C 0.126 H 238.4°. Best body text is #000000 at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#5BBDF9
RGB	rgb(91, 189, 249)
HSL	hsl(203, 93%, 67%)
HSV	hsv(203, 63%, 98%)
CMYK	cmyk(63.5%, 24.1%, 0%, 2.4%)
CIE-LAB	lab(73.19, -10.99, -38.20)
CIE-LCH	lch(73.19, 39.74, 253.95°)
OKLab	oklab(76.38% -0.066 -0.1073)
OKLCH	oklch(76.38% 0.126 238.4)
XYZ	xyz(39.6043, 45.4549, 96.2907)
Luminance	0.4546 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BBDF9 #F9975B

analogous

#5BF9E6 #5BBDF9 #5B6EF9

triadic

#5BBDF9 #F95BBD #BDF95B

tetradic

#5BBDF9 #E65BF9 #F9975B #6EF95B

square

#5BBDF9 #E65BF9 #F9975B #6EF95B

split-complementary

#5BBDF9 #F95B6E #F9E65B

monochromatic

#0885D2 #20A5F7 #5BBDF9 #96D5FB #D1EDFD

Accessibility & contrast

On white

2.08

#5BBDF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.09

#5BBDF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BBDF9

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BBDF9	#FFFFFF	#000000	##000000
##5BBDF9	1.00	2.08	10.09	10.09
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.09	21.00	1.00	1.00
##000000	10.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1BDFC

Deuteranopia (green-blind)

#8CADF8

Tritanopia (blue-blind)

#00CCD1

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #5bbdf9;
/* rgb */ color: rgb(91, 189, 249);
/* oklch */ color: oklch(76.4% 0.126 238.4);

Tailwind

colors: {
  custom: {
    50: '#98d0fb',
    500: '#5bbdf9',
    950: '#000000',
  },
}

SCSS

$custom: #5bbdf9;
$custom-light: #98d0fb;
$custom-dark: #000000;

JSON

{
  "hex": "#5bbdf9",
  "rgb": {
    "r": 91,
    "g": 189,
    "b": 249
  },
  "hsl": {
    "h": 202.785,
    "s": 92.941,
    "l": 66.667
  },
  "oklch": {
    "l": 0.76384,
    "c": 0.12598,
    "h": 238.4
  },
  "luminance": 0.45459
}

Semantic roles & 50–950 ramp

primary

#5BBDF9

secondary

#F1D2BE

accent

#5700E6

background

#FAFCFF

surface

#F3F9FF

border

#CDD2D7

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #5BBDF9

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

Preview Lab → · Contrast checker → · Palette generator →