#3581C6#3581C6

#3581C6 is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 58.9% C 0.129 H 249.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3581C6
RGB	rgb(53, 129, 198)
HSL	hsl(209, 58%, 49%)
HSV	hsv(209, 73%, 78%)
CMYK	cmyk(73.2%, 34.8%, 0%, 22.4%)
CIE-LAB	lab(52.43, -0.04, -42.58)
CIE-LCH	lch(52.43, 42.58, 269.95°)
OKLab	oklab(58.89% -0.0461 -0.121)
OKLCH	oklch(58.89% 0.129 249.2)
XYZ	xyz(19.5076, 20.5324, 56.3502)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3581C6 #C67A35

analogous

#35C6C3 #3581C6 #3538C6

triadic

#3581C6 #C63581 #81C635

tetradic

#3581C6 #C335C6 #C67A35 #38C635

square

#3581C6 #C335C6 #C67A35 #38C635

split-complementary

#3581C6 #C63538 #C6C335

monochromatic

#1B4265 #286296 #3581C6 #639FD5 #93BDE2

Accessibility & contrast

On white

4.11

#3581C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#3581C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3581C6

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3581C6	#FFFFFF	#000000	##000000
##3581C6	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6185C9

Deuteranopia (green-blind)

#4D77C5

Tritanopia (blue-blind)

#00919A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3581c6;
/* rgb */ color: rgb(53, 129, 198);
/* oklch */ color: oklch(58.9% 0.129 249.2);

Tailwind

colors: {
  custom: {
    50: '#7fa5d7',
    500: '#3581c6',
    950: '#000000',
  },
}

SCSS

$custom: #3581c6;
$custom-light: #7fa5d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3581c6",
  "rgb": {
    "r": 53,
    "g": 129,
    "b": 198
  },
  "hsl": {
    "h": 208.552,
    "s": 57.769,
    "l": 49.216
  },
  "oklch": {
    "l": 0.58891,
    "c": 0.12949,
    "h": 249.2
  },
  "luminance": 0.20535
}

Semantic roles & 50–950 ramp

primary

#3581C6

secondary

#CDAA8A

accent

#9047E1

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3581C6

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

Preview Lab → · Contrast checker → · Palette generator →