#3683B7#3683B7

#3683B7 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.6% C 0.110 H 241.7°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3683B7
RGB	rgb(54, 131, 183)
HSL	hsl(204, 54%, 46%)
HSV	hsv(204, 70%, 72%)
CMYK	cmyk(70.5%, 28.4%, 0%, 28.2%)
CIE-LAB	lab(52.32, -6.41, -34.18)
CIE-LCH	lch(52.32, 34.77, 259.38°)
OKLab	oklab(58.57% -0.0519 -0.0965)
OKLCH	oklch(58.57% 0.11 241.7)
XYZ	xyz(18.1816, 20.4338, 47.7765)
Luminance	0.2044 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B7 #B76A36

analogous

#36B7AB #3683B7 #3643B7

triadic

#3683B7 #B73683 #83B736

tetradic

#3683B7 #AB36B7 #B76A36 #43B736

square

#3683B7 #AB36B7 #B76A36 #43B736

split-complementary

#3683B7 #B73643 #B7AB36

monochromatic

#1A3F58 #286188 #3683B7 #5BA0CF #8BBCDD

Accessibility & contrast

On white

4.13

#3683B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3683B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B7

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B7	#FFFFFF	#000000	##000000
##3683B7	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B84B9

Deuteranopia (green-blind)

#5977B6

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3683b7;
/* rgb */ color: rgb(54, 131, 183);
/* oklch */ color: oklch(58.6% 0.110 241.7);

Tailwind

colors: {
  custom: {
    50: '#7da6cd',
    500: '#3683b7',
    950: '#000000',
  },
}

SCSS

$custom: #3683b7;
$custom-light: #7da6cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b7",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 183
  },
  "hsl": {
    "h": 204.186,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.58573,
    "c": 0.10955,
    "h": 241.7
  },
  "luminance": 0.20436
}

Semantic roles & 50–950 ramp

primary

#3683B7

secondary

#C79E82

accent

#864ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B7

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

Preview Lab → · Contrast checker → · Palette generator →