#3580C3#3580C3

#3580C3 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.5% C 0.127 H 248.7°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3580C3
RGB	rgb(53, 128, 195)
HSL	hsl(208, 57%, 49%)
HSV	hsv(208, 73%, 76%)
CMYK	cmyk(72.8%, 34.4%, 0%, 23.5%)
CIE-LAB	lab(51.99, -0.52, -41.58)
CIE-LCH	lch(51.99, 41.58, 269.28°)
OKLab	oklab(58.49% -0.0459 -0.1181)
OKLCH	oklch(58.49% 0.127 248.7)
XYZ	xyz(19.0340, 20.1332, 54.5021)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580C3 #C37835

analogous

#35C3BF #3580C3 #3539C3

triadic

#3580C3 #C33580 #80C335

tetradic

#3580C3 #BF35C3 #C37835 #39C335

square

#3580C3 #BF35C3 #C37835 #39C335

split-complementary

#3580C3 #C33539 #C3BF35

monochromatic

#1B4163 #286093 #3580C3 #619ED4 #91BBE1

Accessibility & contrast

On white

4.18

#3580C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3580C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580C3

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580C3	#FFFFFF	#000000	##000000
##3580C3	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C6

Deuteranopia (green-blind)

#4D76C2

Tritanopia (blue-blind)

#009098

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3580c3;
/* rgb */ color: rgb(53, 128, 195);
/* oklch */ color: oklch(58.5% 0.127 248.7);

Tailwind

colors: {
  custom: {
    50: '#7ea4d5',
    500: '#3580c3',
    950: '#000000',
  },
}

SCSS

$custom: #3580c3;
$custom-light: #7ea4d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3580c3",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 195
  },
  "hsl": {
    "h": 208.31,
    "s": 57.258,
    "l": 48.627
  },
  "oklch": {
    "l": 0.5849,
    "c": 0.12672,
    "h": 248.7
  },
  "luminance": 0.20135
}

Semantic roles & 50–950 ramp

primary

#3580C3

secondary

#CCA888

accent

#9047E1

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3580C3

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

Preview Lab → · Contrast checker → · Palette generator →