#3580D0#3580D0

#3580D0 is a mid, vivid cyan. Relative luminance 0.207; OKLCH L 59.2% C 0.143 H 252.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3580D0
RGB	rgb(53, 128, 208)
HSL	hsl(211, 62%, 51%)
HSV	hsv(211, 75%, 82%)
CMYK	cmyk(74.5%, 38.5%, 0%, 18.4%)
CIE-LAB	lab(52.67, 4.19, -47.89)
CIE-LCH	lch(52.67, 48.07, 275.00°)
OKLab	oklab(59.25% -0.0426 -0.1366)
OKLCH	oklch(59.25% 0.143 252.7)
XYZ	xyz(20.5683, 20.7469, 62.5828)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580D0 #D08535

analogous

#35CDD0 #3580D0 #3735D0

triadic

#3580D0 #D03580 #80D035

tetradic

#3580D0 #D035CD #D08535 #35D037

square

#3580D0 #D035CD #D08535 #35D037

split-complementary

#3580D0 #D03735 #CDD035

monochromatic

#1A4470 #2662A2 #3580D0 #679FDC #98BEE7

Accessibility & contrast

On white

4.08

#3580D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3580D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580D0

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580D0	#FFFFFF	#000000	##000000
##3580D0	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A85D3

Deuteranopia (green-blind)

#4277CE

Tritanopia (blue-blind)

#00939E

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3580d0;
/* rgb */ color: rgb(53, 128, 208);
/* oklch */ color: oklch(59.2% 0.143 252.7);

Tailwind

colors: {
  custom: {
    50: '#81a4df',
    500: '#3580d0',
    950: '#000000',
  },
}

SCSS

$custom: #3580d0;
$custom-light: #81a4df;
$custom-dark: #000000;

JSON

{
  "hex": "#3580d0",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 208
  },
  "hsl": {
    "h": 210.968,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.59249,
    "c": 0.14305,
    "h": 252.7
  },
  "luminance": 0.20749
}

Semantic roles & 50–950 ramp

primary

#3580D0

secondary

#D3B28E

accent

#9742E5

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3580D0

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

Preview Lab → · Contrast checker → · Palette generator →