#3689B8#3689B8

#3689B8 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.1% C 0.107 H 237.3°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3689B8
RGB	rgb(54, 137, 184)
HSL	hsl(202, 55%, 47%)
HSV	hsv(202, 71%, 72%)
CMYK	cmyk(70.7%, 25.5%, 0%, 27.8%)
CIE-LAB	lab(54.17, -9.51, -31.87)
CIE-LCH	lch(54.17, 33.26, 253.39°)
OKLab	oklab(60.05% -0.0576 -0.0897)
OKLCH	oklch(60.05% 0.107 237.3)
XYZ	xyz(19.1153, 22.1342, 48.6030)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689B8 #B86536

analogous

#36B8A6 #3689B8 #3648B8

triadic

#3689B8 #B83689 #89B836

tetradic

#3689B8 #A636B8 #B86536 #48B836

square

#3689B8 #A636B8 #B86536 #48B836

split-complementary

#3689B8 #B83648 #B8A636

monochromatic

#1A4359 #286689 #3689B8 #5CA6CF #8BC0DD

Accessibility & contrast

On white

3.87

#3689B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3689B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689B8

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689B8	#FFFFFF	#000000	##000000
##3689B8	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7389BA

Deuteranopia (green-blind)

#617CB7

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3689b8;
/* rgb */ color: rgb(54, 137, 184);
/* oklch */ color: oklch(60.1% 0.107 237.3);

Tailwind

colors: {
  custom: {
    50: '#7dabcd',
    500: '#3689b8',
    950: '#000000',
  },
}

SCSS

$custom: #3689b8;
$custom-light: #7dabcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3689b8",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 184
  },
  "hsl": {
    "h": 201.692,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.60051,
    "c": 0.10664,
    "h": 237.3
  },
  "luminance": 0.22136
}

Semantic roles & 50–950 ramp

primary

#3689B8

secondary

#C79B82

accent

#7F4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3689B8

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

Preview Lab → · Contrast checker → · Palette generator →