#5599BB#5599BB

#5599BB is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.2% C 0.086 H 231.9°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#5599BB
RGB	rgb(85, 153, 187)
HSL	hsl(200, 43%, 53%)
HSV	hsv(200, 55%, 73%)
CMYK	cmyk(54.5%, 18.2%, 0%, 26.7%)
CIE-LAB	lab(60.16, -11.78, -24.21)
CIE-LCH	lch(60.16, 26.93, 244.05°)
OKLab	oklab(65.16% -0.0529 -0.0674)
OKLCH	oklch(65.16% 0.086 231.9)
XYZ	xyz(24.1038, 28.2995, 51.1962)
Luminance	0.2830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599BB #BB7755

analogous

#55BBAA #5599BB #5566BB

triadic

#5599BB #BB5599 #99BB55

tetradic

#5599BB #AA55BB #BB7755 #66BB55

square

#5599BB #AA55BB #BB7755 #66BB55

split-complementary

#5599BB #BB5566 #BBAA55

monochromatic

#2B556B #3C7897 #5599BB #81B3CC #ACCDDE

Accessibility & contrast

On white

3.15

#5599BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.66

#5599BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599BB

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599BB	#FFFFFF	#000000	##000000
##5599BB	1.00	3.15	6.66	6.66
#FFFFFF	3.15	1.00	21.00	21.00
#000000	6.66	21.00	1.00	1.00
##000000	6.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8897BD

Deuteranopia (green-blind)

#7A8CBB

Tritanopia (blue-blind)

#03A2A4

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5599bb;
/* rgb */ color: rgb(85, 153, 187);
/* oklch */ color: oklch(65.2% 0.086 231.9);

Tailwind

colors: {
  custom: {
    50: '#8cb7cf',
    500: '#5599bb',
    950: '#000000',
  },
}

SCSS

$custom: #5599bb;
$custom-light: #8cb7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#5599bb",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 187
  },
  "hsl": {
    "h": 200,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.65161,
    "c": 0.08567,
    "h": 231.9
  },
  "luminance": 0.28302
}

Semantic roles & 50–950 ramp

primary

#5599BB

secondary

#CCAFA0

accent

#7F55D3

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #5599BB

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

Preview Lab → · Contrast checker → · Palette generator →