#3689BF#3689BF

#3689BF is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.4% C 0.114 H 241.0°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3689BF
RGB	rgb(54, 137, 191)
HSL	hsl(204, 56%, 48%)
HSV	hsv(204, 72%, 75%)
CMYK	cmyk(71.7%, 28.3%, 0%, 25.1%)
CIE-LAB	lab(54.49, -7.08, -35.37)
CIE-LCH	lch(54.49, 36.07, 258.68°)
OKLab	oklab(60.41% -0.0553 -0.0999)
OKLCH	oklch(60.41% 0.114 241)
XYZ	xyz(19.8673, 22.4349, 52.5634)
Luminance	0.2244 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689BF #BF6C36

analogous

#36BFB0 #3689BF #3644BF

triadic

#3689BF #BF3689 #89BF36

tetradic

#3689BF #B036BF #BF6C36 #44BF36

square

#3689BF #B036BF #BF6C36 #44BF36

split-complementary

#3689BF #BF3644 #BFB036

monochromatic

#1B4560 #29678F #3689BF #60A5D2 #90C0E0

Accessibility & contrast

On white

3.83

#3689BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#3689BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689BF

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689BF	#FFFFFF	#000000	##000000
##3689BF	1.00	3.83	5.49	5.49
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#708AC1

Deuteranopia (green-blind)

#5D7CBE

Tritanopia (blue-blind)

#00969C

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3689bf;
/* rgb */ color: rgb(54, 137, 191);
/* oklch */ color: oklch(60.4% 0.114 241.0);

Tailwind

colors: {
  custom: {
    50: '#7eabd2',
    500: '#3689bf',
    950: '#000000',
  },
}

SCSS

$custom: #3689bf;
$custom-light: #7eabd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3689bf",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 191
  },
  "hsl": {
    "h": 203.65,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.60406,
    "c": 0.11415,
    "h": 241
  },
  "luminance": 0.22437
}

Semantic roles & 50–950 ramp

primary

#3689BF

secondary

#CAA187

accent

#8449DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3689BF

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

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