#5599CE#5599CE

#5599CE is a light, moderate cyan. Relative luminance 0.292; OKLCH L 66.0% C 0.105 H 243.9°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#5599CE
RGB	rgb(85, 153, 206)
HSL	hsl(206, 55%, 57%)
HSV	hsv(206, 59%, 81%)
CMYK	cmyk(58.7%, 25.7%, 0%, 19.2%)
CIE-LAB	lab(60.93, -5.88, -33.69)
CIE-LCH	lch(60.93, 34.20, 260.10°)
OKLab	oklab(66.03% -0.0463 -0.0946)
OKLCH	oklch(66.03% 0.105 243.9)
XYZ	xyz(26.2740, 29.1676, 62.6258)
Luminance	0.2917 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599CE #CE8A55

analogous

#55CEC7 #5599CE #555DCE

triadic

#5599CE #CE5599 #99CE55

tetradic

#5599CE #C755CE #CE8A55 #5DCE55

square

#5599CE #C755CE #CE8A55 #5DCE55

split-complementary

#5599CE #CE555D #CEC755

monochromatic

#265A83 #337BB2 #5599CE #85B6DC #B4D2E9

Accessibility & contrast

On white

3.07

#5599CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#5599CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599CE

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599CE	#FFFFFF	#000000	##000000
##5599CE	1.00	3.07	6.83	6.83
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#829AD0

Deuteranopia (green-blind)

#728ECD

Tritanopia (blue-blind)

#00A6AB

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #5599ce;
/* rgb */ color: rgb(85, 153, 206);
/* oklch */ color: oklch(66.0% 0.105 243.9);

Tailwind

colors: {
  custom: {
    50: '#8eb6dd',
    500: '#5599ce',
    950: '#000000',
  },
}

SCSS

$custom: #5599ce;
$custom-light: #8eb6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#5599ce",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 206
  },
  "hsl": {
    "h": 206.281,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.66026,
    "c": 0.10531,
    "h": 243.9
  },
  "luminance": 0.2917
}

Semantic roles & 50–950 ramp

primary

#5599CE

secondary

#D8BCA7

accent

#8B49DF

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #5599CE

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

Preview Lab → · Contrast checker → · Palette generator →