#3689B3#3689B3

#3689B3 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.8% C 0.102 H 234.3°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3689B3
RGB	rgb(54, 137, 179)
HSL	hsl(200, 54%, 46%)
HSV	hsv(200, 70%, 70%)
CMYK	cmyk(69.8%, 23.5%, 0%, 29.8%)
CIE-LAB	lab(53.95, -11.22, -29.35)
CIE-LCH	lch(53.95, 31.42, 249.07°)
OKLab	oklab(59.81% -0.0593 -0.0825)
OKLCH	oklch(59.81% 0.102 234.3)
XYZ	xyz(18.6005, 21.9282, 45.8914)
Luminance	0.2193 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689B3 #B36036

analogous

#36B39E #3689B3 #364AB3

triadic

#3689B3 #B33689 #89B336

tetradic

#3689B3 #9E36B3 #B36036 #4AB336

square

#3689B3 #9E36B3 #B36036 #4AB336

split-complementary

#3689B3 #B3364A #B39E36

monochromatic

#1A4155 #286584 #3689B3 #59A6CD #88BFDB

Accessibility & contrast

On white

3.90

#3689B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3689B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689B3

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689B3	#FFFFFF	#000000	##000000
##3689B3	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7588B5

Deuteranopia (green-blind)

#637CB2

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3689b3;
/* rgb */ color: rgb(54, 137, 179);
/* oklch */ color: oklch(59.8% 0.102 234.3);

Tailwind

colors: {
  custom: {
    50: '#7cabca',
    500: '#3689b3',
    950: '#000000',
  },
}

SCSS

$custom: #3689b3;
$custom-light: #7cabca;
$custom-dark: #000000;

JSON

{
  "hex": "#3689b3",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 179
  },
  "hsl": {
    "h": 200.16,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.59805,
    "c": 0.10159,
    "h": 234.3
  },
  "luminance": 0.2193
}

Semantic roles & 50–950 ramp

primary

#3689B3

secondary

#C59780

accent

#7C4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3689B3

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

Preview Lab → · Contrast checker → · Palette generator →