#3689B0#3689B0

#3689B0 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.7% C 0.099 H 232.3°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#3689B0
RGB	rgb(54, 137, 176)
HSL	hsl(199, 53%, 45%)
HSV	hsv(199, 69%, 69%)
CMYK	cmyk(69.3%, 22.2%, 0%, 31%)
CIE-LAB	lab(53.82, -12.24, -27.83)
CIE-LCH	lch(53.82, 30.40, 246.26°)
OKLab	oklab(59.66% -0.0604 -0.0781)
OKLCH	oklch(59.66% 0.099 232.3)
XYZ	xyz(18.3004, 21.8082, 44.3108)
Luminance	0.2181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689B0 #B05D36

analogous

#36B09A #3689B0 #364CB0

triadic

#3689B0 #B03689 #89B036

tetradic

#3689B0 #9A36B0 #B05D36 #4CB036

square

#3689B0 #9A36B0 #B05D36 #4CB036

split-complementary

#3689B0 #B0364C #B09A36

monochromatic

#194052 #286581 #3689B0 #58A7CC #86BFDA

Accessibility & contrast

On white

3.92

#3689B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#3689B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689B0

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689B0	#FFFFFF	#000000	##000000
##3689B0	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7687B2

Deuteranopia (green-blind)

#657BAF

Tritanopia (blue-blind)

#009496

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3689b0;
/* rgb */ color: rgb(54, 137, 176);
/* oklch */ color: oklch(59.7% 0.099 232.3);

Tailwind

colors: {
  custom: {
    50: '#7cabc7',
    500: '#3689b0',
    950: '#000000',
  },
}

SCSS

$custom: #3689b0;
$custom-light: #7cabc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3689b0",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 176
  },
  "hsl": {
    "h": 199.18,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.59661,
    "c": 0.09872,
    "h": 232.3
  },
  "luminance": 0.2181
}

Semantic roles & 50–950 ramp

primary

#3689B0

secondary

#C4947E

accent

#7A4BDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3689B0

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

Preview Lab → · Contrast checker → · Palette generator →