#3684B3#3684B3

#3684B3 is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.6% C 0.104 H 238.7°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3684B3
RGB	rgb(54, 132, 179)
HSL	hsl(203, 54%, 46%)
HSV	hsv(203, 70%, 70%)
CMYK	cmyk(69.8%, 26.3%, 0%, 29.8%)
CIE-LAB	lab(52.44, -8.38, -31.70)
CIE-LCH	lch(52.44, 32.78, 255.20°)
OKLab	oklab(58.61% -0.0542 -0.0893)
OKLCH	oklch(58.61% 0.104 238.7)
XYZ	xyz(17.9061, 20.5395, 45.6599)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684B3 #B36536

analogous

#36B3A3 #3684B3 #3645B3

triadic

#3684B3 #B33684 #84B336

tetradic

#3684B3 #A336B3 #B36536 #45B336

square

#3684B3 #A336B3 #B36536 #45B336

split-complementary

#3684B3 #B33645 #B3A336

monochromatic

#1A3F55 #286184 #3684B3 #59A1CD #88BCDB

Accessibility & contrast

On white

4.11

#3684B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#3684B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684B3

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684B3	#FFFFFF	#000000	##000000
##3684B3	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E84B5

Deuteranopia (green-blind)

#5D78B2

Tritanopia (blue-blind)

#009094

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3684b3;
/* rgb */ color: rgb(54, 132, 179);
/* oklch */ color: oklch(58.6% 0.104 238.7);

Tailwind

colors: {
  custom: {
    50: '#7ca7ca',
    500: '#3684b3',
    950: '#000000',
  },
}

SCSS

$custom: #3684b3;
$custom-light: #7ca7ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3684b3",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 179
  },
  "hsl": {
    "h": 202.56,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.58606,
    "c": 0.10447,
    "h": 238.7
  },
  "luminance": 0.20541
}

Semantic roles & 50–950 ramp

primary

#3684B3

secondary

#C59A80

accent

#824BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3684B3

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

Preview Lab → · Contrast checker → · Palette generator →