#3689BD#3689BD

#3689BD is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.3% C 0.112 H 240.0°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3689BD
RGB	rgb(54, 137, 189)
HSL	hsl(203, 56%, 48%)
HSV	hsv(203, 71%, 74%)
CMYK	cmyk(71.4%, 27.5%, 0%, 25.9%)
CIE-LAB	lab(54.39, -7.78, -34.37)
CIE-LCH	lch(54.39, 35.24, 257.25°)
OKLab	oklab(60.3% -0.0559 -0.097)
OKLCH	oklch(60.3% 0.112 240)
XYZ	xyz(19.6487, 22.3475, 51.4122)
Luminance	0.2235 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689BD #BD6A36

analogous

#36BDAD #3689BD #3645BD

triadic

#3689BD #BD3689 #89BD36

tetradic

#3689BD #AD36BD #BD6A36 #45BD36

square

#3689BD #AD36BD #BD6A36 #45BD36

split-complementary

#3689BD #BD3645 #BDAD36

monochromatic

#1B445E #28668D #3689BD #5FA5D1 #8FC0DF

Accessibility & contrast

On white

3.84

#3689BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#3689BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689BD

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689BD	#FFFFFF	#000000	##000000
##3689BD	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7189BF

Deuteranopia (green-blind)

#5E7CBC

Tritanopia (blue-blind)

#00969B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3689bd;
/* rgb */ color: rgb(54, 137, 189);
/* oklch */ color: oklch(60.3% 0.112 240.0);

Tailwind

colors: {
  custom: {
    50: '#7eabd1',
    500: '#3689bd',
    950: '#000000',
  },
}

SCSS

$custom: #3689bd;
$custom-light: #7eabd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3689bd",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 189
  },
  "hsl": {
    "h": 203.111,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.60303,
    "c": 0.11196,
    "h": 240
  },
  "luminance": 0.2235
}

Semantic roles & 50–950 ramp

primary

#3689BD

secondary

#C9A085

accent

#8349DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3689BD

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

Preview Lab → · Contrast checker → · Palette generator →