#3580BE#3580BE

#3580BE is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.2% C 0.121 H 246.9°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3580BE
RGB	rgb(53, 128, 190)
HSL	hsl(207, 56%, 48%)
HSV	hsv(207, 72%, 75%)
CMYK	cmyk(72.1%, 32.6%, 0%, 25.5%)
CIE-LAB	lab(51.74, -2.32, -39.12)
CIE-LCH	lch(51.74, 39.18, 266.61°)
OKLab	oklab(58.21% -0.0474 -0.1109)
OKLCH	oklch(58.21% 0.121 246.9)
XYZ	xyz(18.4781, 19.9109, 51.5746)
Luminance	0.1991 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3580BE #BE7335

analogous

#35BEB7 #3580BE #353CBE

triadic

#3580BE #BE3580 #80BE35

tetradic

#3580BE #B735BE #BE7335 #3CBE35

square

#3580BE #B735BE #BE7335 #3CBE35

split-complementary

#3580BE #BE353C #BEB735

monochromatic

#1A405E #28608E #3580BE #5E9ED2 #8EBBDF

Accessibility & contrast

On white

4.21

#3580BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#3580BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3580BE

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3580BE	#FFFFFF	#000000	##000000
##3580BE	1.00	4.21	4.98	4.98
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482C1

Deuteranopia (green-blind)

#5176BD

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3580be;
/* rgb */ color: rgb(53, 128, 190);
/* oklch */ color: oklch(58.2% 0.121 246.9);

Tailwind

colors: {
  custom: {
    50: '#7da4d2',
    500: '#3580be',
    950: '#000000',
  },
}

SCSS

$custom: #3580be;
$custom-light: #7da4d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3580be",
  "rgb": {
    "r": 53,
    "g": 128,
    "b": 190
  },
  "hsl": {
    "h": 207.153,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5821,
    "c": 0.1206,
    "h": 246.9
  },
  "luminance": 0.19913
}

Semantic roles & 50–950 ramp

primary

#3580BE

secondary

#CAA485

accent

#8D48E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3580BE

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

Preview Lab → · Contrast checker → · Palette generator →