#3580C4#3580C4

#3580C4 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.128 H 249.1°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3580C4
RGB	rgb(53, 128, 196)
HSL	hsl(209, 57%, 49%)
HSV	hsv(209, 73%, 77%)
CMYK	cmyk(73%, 34.7%, 0%, 23.1%)
CIE-LAB	lab(52.04, -0.16, -42.07)
CIE-LCH	lch(52.04, 42.07, 269.78°)
OKLab	oklab(58.55% -0.0457 -0.1195)
OKLCH	oklch(58.55% 0.128 249.1)
XYZ	xyz(19.1474, 20.1786, 55.0996)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580C4 #C47935

analogous

#35C4C1 #3580C4 #3539C4

triadic

#3580C4 #C43580 #80C435

tetradic

#3580C4 #C135C4 #C47935 #39C435

square

#3580C4 #C135C4 #C47935 #39C435

split-complementary

#3580C4 #C43539 #C4C135

monochromatic

#1B4164 #286194 #3580C4 #629ED4 #92BCE1

Accessibility & contrast

On white

4.17

#3580C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3580C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580C4

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580C4	#FFFFFF	#000000	##000000
##3580C4	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C7

Deuteranopia (green-blind)

#4C76C3

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3580c4;
/* rgb */ color: rgb(53, 128, 196);
/* oklch */ color: oklch(58.5% 0.128 249.1);

Tailwind

colors: {
  custom: {
    50: '#7ea4d6',
    500: '#3580c4',
    950: '#000000',
  },
}

SCSS

$custom: #3580c4;
$custom-light: #7ea4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3580c4",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 196
  },
  "hsl": {
    "h": 208.531,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.58547,
    "c": 0.12795,
    "h": 249.1
  },
  "luminance": 0.20181
}

Semantic roles & 50–950 ramp

primary

#3580C4

secondary

#CCA988

accent

#9047E1

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3580C4

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

Preview Lab → · Contrast checker → · Palette generator →