#3584BB#3584BB

#3584BB is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 59.0% C 0.114 H 242.7°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3584BB
RGB	rgb(53, 132, 187)
HSL	hsl(205, 56%, 47%)
HSV	hsv(205, 72%, 73%)
CMYK	cmyk(71.7%, 29.4%, 0%, 26.7%)
CIE-LAB	lab(52.78, -5.73, -35.76)
CIE-LCH	lch(52.78, 36.22, 260.89°)
OKLab	oklab(58.99% -0.0522 -0.1011)
OKLCH	oklch(58.99% 0.114 242.7)
XYZ	xyz(18.6856, 20.8452, 50.0428)
Luminance	0.2085 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3584BB #BB6C35

analogous

#35BBAF #3584BB #3541BB

triadic

#3584BB #BB3584 #84BB35

tetradic

#3584BB #AF35BB #BB6C35 #41BB35

square

#3584BB #AF35BB #BB6C35 #41BB35

split-complementary

#3584BB #BB3541 #BBAF35

monochromatic

#1A415C #27628B #3584BB #5CA1D1 #8CBDDE

Accessibility & contrast

On white

4.06

#3584BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#3584BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3584BB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3584BB	#FFFFFF	#000000	##000000
##3584BB	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B85BD

Deuteranopia (green-blind)

#5878BA

Tritanopia (blue-blind)

#009297

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3584bb;
/* rgb */ color: rgb(53, 132, 187);
/* oklch */ color: oklch(59.0% 0.114 242.7);

Tailwind

colors: {
  custom: {
    50: '#7da7cf',
    500: '#3584bb',
    950: '#000000',
  },
}

SCSS

$custom: #3584bb;
$custom-light: #7da7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3584bb",
  "rgb": {
    "r": 53,
    "g": 132,
    "b": 187
  },
  "hsl": {
    "h": 204.627,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.58986,
    "c": 0.11376,
    "h": 242.7
  },
  "luminance": 0.20847
}

Semantic roles & 50–950 ramp

primary

#3584BB

secondary

#C9A083

accent

#8649DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3584BB

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

Preview Lab → · Contrast checker → · Palette generator →