#3599BC#3599BC

#3599BC is a light, moderate cyan. Relative luminance 0.272; OKLCH L 64.1% C 0.104 H 225.5°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3599BC
RGB	rgb(53, 153, 188)
HSL	hsl(196, 56%, 47%)
HSV	hsv(196, 72%, 74%)
CMYK	cmyk(71.8%, 18.6%, 0%, 26.3%)
CIE-LAB	lab(59.13, -17.15, -26.45)
CIE-LCH	lch(59.13, 31.52, 237.04°)
OKLab	oklab(64.05% -0.0728 -0.0741)
OKLCH	oklch(64.05% 0.104 225.5)
XYZ	xyz(21.9328, 27.1677, 51.6552)
Luminance	0.2717 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3599BC #BC5835

analogous

#35BC9C #3599BC #3555BC

triadic

#3599BC #BC3599 #99BC35

tetradic

#3599BC #9C35BC #BC5835 #55BC35

square

#3599BC #9C35BC #BC5835 #55BC35

split-complementary

#3599BC #BC3555 #BC9C35

monochromatic

#1A4B5D #28728C #3599BC #5DB3D1 #8DC9DF

Accessibility & contrast

On white

3.26

#3599BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#3599BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3599BC

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3599BC	#FFFFFF	#000000	##000000
##3599BC	1.00	3.26	6.43	6.43
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BE

Deuteranopia (green-blind)

#7388BC

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3599bc;
/* rgb */ color: rgb(53, 153, 188);
/* oklch */ color: oklch(64.1% 0.104 225.5);

Tailwind

colors: {
  custom: {
    50: '#7eb7d0',
    500: '#3599bc',
    950: '#000000',
  },
}

SCSS

$custom: #3599bc;
$custom-light: #7eb7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3599bc",
  "rgb": {
    "r": 53,
    "g": 153,
    "b": 188
  },
  "hsl": {
    "h": 195.556,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64054,
    "c": 0.10386,
    "h": 225.5
  },
  "luminance": 0.2717
}

Semantic roles & 50–950 ramp

primary

#3599BC

secondary

#C99684

accent

#7048DF

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #3599BC

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

Preview Lab → · Contrast checker → · Palette generator →