#3580DA#3580DA

#3580DA is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.9% C 0.156 H 255.0°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3580DA
RGB	rgb(53, 128, 218)
HSL	hsl(213, 69%, 53%)
HSV	hsv(213, 76%, 85%)
CMYK	cmyk(75.7%, 41.3%, 0%, 14.5%)
CIE-LAB	lab(53.23, 7.84, -52.65)
CIE-LCH	lch(53.23, 53.23, 278.47°)
OKLab	oklab(59.86% -0.0403 -0.1505)
OKLCH	oklch(59.86% 0.156 255)
XYZ	xyz(21.8376, 21.2547, 69.2677)
Luminance	0.2126 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580DA #DA8F35

analogous

#35D3DA #3580DA #3C35DA

triadic

#3580DA #DA3580 #80DA35

tetradic

#3580DA #DA35D3 #DA8F35 #35DA3C

square

#3580DA #DA35D3 #DA8F35 #35DA3C

split-complementary

#3580DA #DA3C35 #D3DA35

monochromatic

#17467E #2062B1 #3580DA #69A1E3 #9CC1ED

Accessibility & contrast

On white

4.00

#3580DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#3580DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580DA

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580DA	#FFFFFF	#000000	##000000
##3580DA	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DE

Deuteranopia (green-blind)

#3878D8

Tritanopia (blue-blind)

#0095A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3580da;
/* rgb */ color: rgb(53, 128, 218);
/* oklch */ color: oklch(59.9% 0.156 255.0);

Tailwind

colors: {
  custom: {
    50: '#83a4e6',
    500: '#3580da',
    950: '#000000',
  },
}

SCSS

$custom: #3580da;
$custom-light: #83a4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3580da",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 218
  },
  "hsl": {
    "h": 212.727,
    "s": 69.038,
    "l": 53.137
  },
  "oklch": {
    "l": 0.59862,
    "c": 0.15585,
    "h": 255
  },
  "luminance": 0.21257
}

Semantic roles & 50–950 ramp

primary

#3580DA

secondary

#D9B992

accent

#9C3CEC

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #3580DA

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

Preview Lab → · Contrast checker → · Palette generator →