#3591D2#3591D2

#3591D2 is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.2% C 0.130 H 243.7°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3591D2
RGB	rgb(53, 145, 210)
HSL	hsl(205, 64%, 52%)
HSV	hsv(205, 75%, 82%)
CMYK	cmyk(74.8%, 31%, 0%, 17.6%)
CIE-LAB	lab(57.71, -5.14, -41.05)
CIE-LCH	lch(57.71, 41.37, 262.86°)
OKLab	oklab(63.24% -0.0576 -0.1163)
OKLCH	oklch(63.24% 0.13 243.7)
XYZ	xyz(23.2220, 25.6581, 64.6889)
Luminance	0.2566 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3591D2 #D27635

analogous

#35D2C5 #3591D2 #3543D2

triadic

#3591D2 #D23591 #91D235

tetradic

#3591D2 #C535D2 #D27635 #43D235

square

#3591D2 #C535D2 #D27635 #43D235

split-complementary

#3591D2 #D23543 #D2C535

monochromatic

#1A4E73 #2570A5 #3591D2 #67ACDD #99C8E8

Accessibility & contrast

On white

3.42

#3591D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#3591D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3591D2

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3591D2	#FFFFFF	#000000	##000000
##3591D2	1.00	3.42	6.13	6.13
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7393D5

Deuteranopia (green-blind)

#5D84D1

Tritanopia (blue-blind)

#00A1A8

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3591d2;
/* rgb */ color: rgb(53, 145, 210);
/* oklch */ color: oklch(63.2% 0.130 243.7);

Tailwind

colors: {
  custom: {
    50: '#81b1e0',
    500: '#3591d2',
    950: '#000000',
  },
}

SCSS

$custom: #3591d2;
$custom-light: #81b1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3591d2",
  "rgb": {
    "r": 53,
    "g": 145,
    "b": 210
  },
  "hsl": {
    "h": 204.841,
    "s": 63.563,
    "l": 51.569
  },
  "oklch": {
    "l": 0.63243,
    "c": 0.12978,
    "h": 243.7
  },
  "luminance": 0.25661
}

Semantic roles & 50–950 ramp

primary

#3591D2

secondary

#D4AB8F

accent

#8641E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3591D2

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

Preview Lab → · Contrast checker → · Palette generator →