#3689B2#3689B2

#3689B2 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.8% C 0.101 H 233.6°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3689B2
RGB	rgb(54, 137, 178)
HSL	hsl(200, 53%, 45%)
HSV	hsv(200, 70%, 70%)
CMYK	cmyk(69.7%, 23%, 0%, 30.2%)
CIE-LAB	lab(53.91, -11.56, -28.84)
CIE-LCH	lch(53.91, 31.07, 248.15°)
OKLab	oklab(59.76% -0.0597 -0.081)
OKLCH	oklch(59.76% 0.101 233.6)
XYZ	xyz(18.4997, 21.8879, 45.3607)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689B2 #B25F36

analogous

#36B29D #3689B2 #364BB2

triadic

#3689B2 #B23689 #89B236

tetradic

#3689B2 #9D36B2 #B25F36 #4BB236

square

#3689B2 #9D36B2 #B25F36 #4BB236

split-complementary

#3689B2 #B2364B #B29D36

monochromatic

#1A4154 #286583 #3689B2 #59A6CD #88BFDB

Accessibility & contrast

On white

3.90

#3689B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3689B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689B2

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689B2	#FFFFFF	#000000	##000000
##3689B2	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7588B4

Deuteranopia (green-blind)

#647BB1

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3689b2;
/* rgb */ color: rgb(54, 137, 178);
/* oklch */ color: oklch(59.8% 0.101 233.6);

Tailwind

colors: {
  custom: {
    50: '#7cabc9',
    500: '#3689b2',
    950: '#000000',
  },
}

SCSS

$custom: #3689b2;
$custom-light: #7cabc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3689b2",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 178
  },
  "hsl": {
    "h": 199.839,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.59757,
    "c": 0.10062,
    "h": 233.6
  },
  "luminance": 0.2189
}

Semantic roles & 50–950 ramp

primary

#3689B2

secondary

#C5967F

accent

#7B4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3689B2

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

Preview Lab → · Contrast checker → · Palette generator →