#3683B8#3683B8

#3683B8 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.6% C 0.111 H 242.2°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3683B8
RGB	rgb(54, 131, 184)
HSL	hsl(204, 55%, 47%)
HSV	hsv(204, 71%, 72%)
CMYK	cmyk(70.7%, 28.8%, 0%, 27.8%)
CIE-LAB	lab(52.37, -6.06, -34.68)
CIE-LCH	lch(52.37, 35.20, 260.09°)
OKLab	oklab(58.63% -0.0515 -0.0979)
OKLCH	oklch(58.63% 0.111 242.2)
XYZ	xyz(18.2860, 20.4755, 48.3266)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B8 #B86B36

analogous

#36B8AC #3683B8 #3642B8

triadic

#3683B8 #B83683 #83B836

tetradic

#3683B8 #AC36B8 #B86B36 #42B836

square

#3683B8 #AC36B8 #B86B36 #42B836

split-complementary

#3683B8 #B83642 #B8AC36

monochromatic

#1A4059 #286189 #3683B8 #5CA0CF #8BBCDD

Accessibility & contrast

On white

4.12

#3683B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3683B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B8

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B8	#FFFFFF	#000000	##000000
##3683B8	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B84BA

Deuteranopia (green-blind)

#5977B7

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3683b8;
/* rgb */ color: rgb(54, 131, 184);
/* oklch */ color: oklch(58.6% 0.111 242.2);

Tailwind

colors: {
  custom: {
    50: '#7da6cd',
    500: '#3683b8',
    950: '#000000',
  },
}

SCSS

$custom: #3683b8;
$custom-light: #7da6cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b8",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 184
  },
  "hsl": {
    "h": 204.462,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58625,
    "c": 0.11069,
    "h": 242.2
  },
  "luminance": 0.20478
}

Semantic roles & 50–950 ramp

primary

#3683B8

secondary

#C79F82

accent

#864ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B8

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

Preview Lab → · Contrast checker → · Palette generator →