#3581C5#3581C5

#3581C5 is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 58.8% C 0.128 H 248.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3581C5
RGB	rgb(53, 129, 197)
HSL	hsl(208, 58%, 49%)
HSV	hsv(208, 73%, 77%)
CMYK	cmyk(73.1%, 34.5%, 0%, 22.7%)
CIE-LAB	lab(52.38, -0.40, -42.10)
CIE-LCH	lch(52.38, 42.10, 269.46°)
OKLab	oklab(58.83% -0.0463 -0.1196)
OKLCH	oklch(58.83% 0.128 248.8)
XYZ	xyz(19.3927, 20.4864, 55.7447)
Luminance	0.2049 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3581C5 #C57935

analogous

#35C5C1 #3581C5 #3539C5

triadic

#3581C5 #C53581 #81C535

tetradic

#3581C5 #C135C5 #C57935 #39C535

square

#3581C5 #C135C5 #C57935 #39C535

split-complementary

#3581C5 #C53539 #C5C135

monochromatic

#1B4265 #286195 #3581C5 #629FD5 #93BCE2

Accessibility & contrast

On white

4.12

#3581C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3581C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3581C5

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3581C5	#FFFFFF	#000000	##000000
##3581C5	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6284C8

Deuteranopia (green-blind)

#4D77C4

Tritanopia (blue-blind)

#00919A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3581c5;
/* rgb */ color: rgb(53, 129, 197);
/* oklch */ color: oklch(58.8% 0.128 248.8);

Tailwind

colors: {
  custom: {
    50: '#7fa5d7',
    500: '#3581c5',
    950: '#000000',
  },
}

SCSS

$custom: #3581c5;
$custom-light: #7fa5d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3581c5",
  "rgb": {
    "r": 53,
    "g": 129,
    "b": 197
  },
  "hsl": {
    "h": 208.333,
    "s": 57.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.58834,
    "c": 0.12825,
    "h": 248.8
  },
  "luminance": 0.20489
}

Semantic roles & 50–950 ramp

primary

#3581C5

secondary

#CDA989

accent

#9047E1

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3581C5

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

Preview Lab → · Contrast checker → · Palette generator →