#5599CF#5599CF

#5599CF is a light, moderate cyan. Relative luminance 0.292; OKLCH L 66.1% C 0.106 H 244.4°. Best body text is #000000 at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#5599CF
RGB	rgb(85, 153, 207)
HSL	hsl(207, 56%, 57%)
HSV	hsv(207, 59%, 81%)
CMYK	cmyk(58.9%, 26.1%, 0%, 18.8%)
CIE-LAB	lab(60.97, -5.56, -34.18)
CIE-LCH	lch(60.97, 34.63, 260.76°)
OKLab	oklab(66.07% -0.046 -0.096)
OKLCH	oklch(66.07% 0.106 244.4)
XYZ	xyz(26.3959, 29.2163, 63.2677)
Luminance	0.2922 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599CF #CF8B55

analogous

#55CFC8 #5599CF #555CCF

triadic

#5599CF #CF5599 #99CF55

tetradic

#5599CF #C855CF #CF8B55 #5CCF55

square

#5599CF #C855CF #CF8B55 #5CCF55

split-complementary

#5599CF #CF555C #CFC855

monochromatic

#255A84 #337BB4 #5599CF #85B6DC #B4D2EA

Accessibility & contrast

On white

3.07

#5599CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.84

#5599CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599CF

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599CF	#FFFFFF	#000000	##000000
##5599CF	1.00	3.07	6.84	6.84
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.84	21.00	1.00	1.00
##000000	6.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#819AD1

Deuteranopia (green-blind)

#718ECE

Tritanopia (blue-blind)

#00A6AC

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #5599cf;
/* rgb */ color: rgb(85, 153, 207);
/* oklch */ color: oklch(66.1% 0.106 244.4);

Tailwind

colors: {
  custom: {
    50: '#8eb6de',
    500: '#5599cf',
    950: '#000000',
  },
}

SCSS

$custom: #5599cf;
$custom-light: #8eb6de;
$custom-dark: #000000;

JSON

{
  "hex": "#5599cf",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 207
  },
  "hsl": {
    "h": 206.557,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.66074,
    "c": 0.10645,
    "h": 244.4
  },
  "luminance": 0.29219
}

Semantic roles & 50–950 ramp

primary

#5599CF

secondary

#D9BDA7

accent

#8B49DF

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #5599CF

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

Preview Lab → · Contrast checker → · Palette generator →