#3689B5#3689B5

#3689B5 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.9% C 0.104 H 235.5°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3689B5
RGB	rgb(54, 137, 181)
HSL	hsl(201, 54%, 46%)
HSV	hsv(201, 70%, 71%)
CMYK	cmyk(70.2%, 24.3%, 0%, 29%)
CIE-LAB	lab(54.04, -10.54, -30.36)
CIE-LCH	lch(54.04, 32.14, 250.86°)
OKLab	oklab(59.9% -0.0586 -0.0854)
OKLCH	oklch(59.9% 0.104 235.5)
XYZ	xyz(18.8042, 22.0097, 46.9644)
Luminance	0.2201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689B5 #B56236

analogous

#36B5A1 #3689B5 #3649B5

triadic

#3689B5 #B53689 #89B536

tetradic

#3689B5 #A136B5 #B56236 #49B536

square

#3689B5 #A136B5 #B56236 #49B536

split-complementary

#3689B5 #B53649 #B5A136

monochromatic

#1A4257 #286586 #3689B5 #5AA6CE #89BFDC

Accessibility & contrast

On white

3.89

#3689B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#3689B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689B5

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689B5	#FFFFFF	#000000	##000000
##3689B5	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7488B7

Deuteranopia (green-blind)

#637CB4

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3689b5;
/* rgb */ color: rgb(54, 137, 181);
/* oklch */ color: oklch(59.9% 0.104 235.5);

Tailwind

colors: {
  custom: {
    50: '#7dabcb',
    500: '#3689b5',
    950: '#000000',
  },
}

SCSS

$custom: #3689b5;
$custom-light: #7dabcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3689b5",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 181
  },
  "hsl": {
    "h": 200.787,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.59903,
    "c": 0.10358,
    "h": 235.5
  },
  "luminance": 0.22012
}

Semantic roles & 50–950 ramp

primary

#3689B5

secondary

#C69981

accent

#7D4ADD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3689B5

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

Preview Lab → · Contrast checker → · Palette generator →