#3599BF#3599BF

#3599BF is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.2% C 0.106 H 227.6°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#3599BF
RGB	rgb(53, 153, 191)
HSL	hsl(197, 57%, 48%)
HSV	hsv(197, 72%, 75%)
CMYK	cmyk(72.3%, 19.9%, 0%, 25.1%)
CIE-LAB	lab(59.25, -16.15, -27.96)
CIE-LCH	lch(59.25, 32.29, 239.98°)
OKLab	oklab(64.19% -0.0717 -0.0784)
OKLCH	oklch(64.19% 0.106 227.6)
XYZ	xyz(22.2596, 27.2984, 53.3761)
Luminance	0.2730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3599BF #BF5B35

analogous

#35BFA0 #3599BF #3554BF

triadic

#3599BF #BF3599 #99BF35

tetradic

#3599BF #A035BF #BF5B35 #54BF35

square

#3599BF #A035BF #BF5B35 #54BF35

split-complementary

#3599BF #BF3554 #BFA035

monochromatic

#1A4C5F #28738F #3599BF #5FB3D3 #8FC9E0

Accessibility & contrast

On white

3.25

#3599BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#3599BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3599BF

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3599BF	#FFFFFF	#000000	##000000
##3599BF	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8596C1

Deuteranopia (green-blind)

#7289BF

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3599bf;
/* rgb */ color: rgb(53, 153, 191);
/* oklch */ color: oklch(64.2% 0.106 227.6);

Tailwind

colors: {
  custom: {
    50: '#7fb7d2',
    500: '#3599bf',
    950: '#000000',
  },
}

SCSS

$custom: #3599bf;
$custom-light: #7fb7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3599bf",
  "rgb": {
    "r": 53,
    "g": 153,
    "b": 191
  },
  "hsl": {
    "h": 196.522,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.6419,
    "c": 0.10621,
    "h": 227.6
  },
  "luminance": 0.27301
}

Semantic roles & 50–950 ramp

primary

#3599BF

secondary

#CA9885

accent

#7248E0

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #3599BF

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

Preview Lab → · Contrast checker → · Palette generator →