#3683BF#3683BF

#3683BF is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 59.0% C 0.119 H 245.4°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#3683BF
RGB	rgb(54, 131, 191)
HSL	hsl(206, 56%, 48%)
HSV	hsv(206, 72%, 75%)
CMYK	cmyk(71.7%, 31.4%, 0%, 25.1%)
CIE-LAB	lab(52.70, -3.59, -38.16)
CIE-LCH	lch(52.70, 38.33, 264.63°)
OKLab	oklab(59% -0.0494 -0.1081)
OKLCH	oklch(59% 0.119 245.4)
XYZ	xyz(19.0380, 20.7763, 52.2870)
Luminance	0.2078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683BF #BF7236

analogous

#36BFB6 #3683BF #363FBF

triadic

#3683BF #BF3683 #83BF36

tetradic

#3683BF #B636BF #BF7236 #3FBF36

square

#3683BF #B636BF #BF7236 #3FBF36

split-complementary

#3683BF #BF363F #BFB636

monochromatic

#1B4260 #29628F #3683BF #60A0D2 #90BDE0

Accessibility & contrast

On white

4.07

#3683BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#3683BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683BF

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683BF	#FFFFFF	#000000	##000000
##3683BF	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6885C2

Deuteranopia (green-blind)

#5578BE

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3683bf;
/* rgb */ color: rgb(54, 131, 191);
/* oklch */ color: oklch(59.0% 0.119 245.4);

Tailwind

colors: {
  custom: {
    50: '#7ea6d2',
    500: '#3683bf',
    950: '#000000',
  },
}

SCSS

$custom: #3683bf;
$custom-light: #7ea6d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3683bf",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 191
  },
  "hsl": {
    "h": 206.277,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58998,
    "c": 0.11883,
    "h": 245.4
  },
  "luminance": 0.20778
}

Semantic roles & 50–950 ramp

primary

#3683BF

secondary

#CAA487

accent

#8B49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3683BF

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

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