#5599CC#5599CC

#5599CC is a light, moderate cyan. Relative luminance 0.291; OKLCH L 65.9% C 0.103 H 242.9°. Best body text is #000000 at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#5599CC
RGB	rgb(85, 153, 204)
HSL	hsl(206, 54%, 57%)
HSV	hsv(206, 58%, 80%)
CMYK	cmyk(58.3%, 25%, 0%, 20%)
CIE-LAB	lab(60.84, -6.51, -32.70)
CIE-LCH	lch(60.84, 33.35, 258.73°)
OKLab	oklab(65.93% -0.047 -0.0917)
OKLCH	oklch(65.93% 0.103 242.9)
XYZ	xyz(26.0326, 29.0710, 61.3544)
Luminance	0.2907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599CC #CC8855

analogous

#55CCC3 #5599CC #555ECC

triadic

#5599CC #CC5599 #99CC55

tetradic

#5599CC #C355CC #CC8855 #5ECC55

square

#5599CC #C355CC #CC8855 #5ECC55

split-complementary

#5599CC #CC555E #CCC355

monochromatic

#265A80 #357BAF #5599CC #84B5DA #B3D1E8

Accessibility & contrast

On white

3.08

#5599CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.81

#5599CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5599CC

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599CC	#FFFFFF	#000000	##000000
##5599CC	1.00	3.08	6.81	6.81
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.81	21.00	1.00	1.00
##000000	6.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8399CE

Deuteranopia (green-blind)

#738DCB

Tritanopia (blue-blind)

#00A5AA

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #5599cc;
/* rgb */ color: rgb(85, 153, 204);
/* oklch */ color: oklch(65.9% 0.103 242.9);

Tailwind

colors: {
  custom: {
    50: '#8eb6db',
    500: '#5599cc',
    950: '#000000',
  },
}

SCSS

$custom: #5599cc;
$custom-light: #8eb6db;
$custom-dark: #000000;

JSON

{
  "hex": "#5599cc",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 204
  },
  "hsl": {
    "h": 205.714,
    "s": 53.846,
    "l": 56.667
  },
  "oklch": {
    "l": 0.65931,
    "c": 0.10306,
    "h": 242.9
  },
  "luminance": 0.29073
}

Semantic roles & 50–950 ramp

primary

#5599CC

secondary

#D7BBA6

accent

#894BDD

background

#F9FBFD

surface

#F1F6FB

border

#CBD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #5599CC

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

Preview Lab → · Contrast checker → · Palette generator →