#3581C7#3581C7

#3581C7 is a mid, vivid cyan. Relative luminance 0.206; OKLCH L 58.9% C 0.131 H 249.5°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3581C7
RGB	rgb(53, 129, 199)
HSL	hsl(209, 58%, 49%)
HSV	hsv(209, 73%, 78%)
CMYK	cmyk(73.4%, 35.2%, 0%, 22%)
CIE-LAB	lab(52.49, 0.32, -43.07)
CIE-LCH	lch(52.49, 43.07, 270.43°)
OKLab	oklab(58.95% -0.0458 -0.1224)
OKLCH	oklch(58.95% 0.131 249.5)
XYZ	xyz(19.6234, 20.5787, 56.9596)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3581C7 #C77B35

analogous

#35C7C4 #3581C7 #3538C7

triadic

#3581C7 #C73581 #81C735

tetradic

#3581C7 #C435C7 #C77B35 #38C735

square

#3581C7 #C435C7 #C77B35 #38C735

split-complementary

#3581C7 #C73538 #C7C435

monochromatic

#1B4266 #286297 #3581C7 #649FD6 #94BDE2

Accessibility & contrast

On white

4.10

#3581C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3581C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3581C7

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3581C7	#FFFFFF	#000000	##000000
##3581C7	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6185CA

Deuteranopia (green-blind)

#4C77C6

Tritanopia (blue-blind)

#00929B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3581c7;
/* rgb */ color: rgb(53, 129, 199);
/* oklch */ color: oklch(58.9% 0.131 249.5);

Tailwind

colors: {
  custom: {
    50: '#7fa5d8',
    500: '#3581c7',
    950: '#000000',
  },
}

SCSS

$custom: #3581c7;
$custom-light: #7fa5d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3581c7",
  "rgb": {
    "r": 53,
    "g": 129,
    "b": 199
  },
  "hsl": {
    "h": 208.767,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58948,
    "c": 0.13073,
    "h": 249.5
  },
  "luminance": 0.20581
}

Semantic roles & 50–950 ramp

primary

#3581C7

secondary

#CEAB8A

accent

#9147E1

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3581C7

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

Preview Lab → · Contrast checker → · Palette generator →