#3684B5#3684B5

#3684B5 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.7% C 0.107 H 239.9°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3684B5
RGB	rgb(54, 132, 181)
HSL	hsl(203, 54%, 46%)
HSV	hsv(203, 70%, 71%)
CMYK	cmyk(70.2%, 27.1%, 0%, 29%)
CIE-LAB	lab(52.53, -7.68, -32.70)
CIE-LCH	lch(52.53, 33.59, 256.78°)
OKLab	oklab(58.71% -0.0535 -0.0922)
OKLCH	oklch(58.71% 0.107 239.9)
XYZ	xyz(18.1098, 20.6210, 46.7329)
Luminance	0.2062 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3684B5 #B56736

analogous

#36B5A6 #3684B5 #3644B5

triadic

#3684B5 #B53684 #84B536

tetradic

#3684B5 #A636B5 #B56736 #44B536

square

#3684B5 #A636B5 #B56736 #44B536

split-complementary

#3684B5 #B53644 #B5A636

monochromatic

#1A3F57 #286286 #3684B5 #5AA1CE #89BCDC

Accessibility & contrast

On white

4.10

#3684B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3684B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3684B5

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3684B5	#FFFFFF	#000000	##000000
##3684B5	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D84B7

Deuteranopia (green-blind)

#5C78B4

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3684b5;
/* rgb */ color: rgb(54, 132, 181);
/* oklch */ color: oklch(58.7% 0.107 239.9);

Tailwind

colors: {
  custom: {
    50: '#7ca7cb',
    500: '#3684b5',
    950: '#000000',
  },
}

SCSS

$custom: #3684b5;
$custom-light: #7ca7cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3684b5",
  "rgb": {
    "r": 54,
    "g": 132,
    "b": 181
  },
  "hsl": {
    "h": 203.15,
    "s": 54.043,
    "l": 46.078
  },
  "oklch": {
    "l": 0.58707,
    "c": 0.10663,
    "h": 239.9
  },
  "luminance": 0.20623
}

Semantic roles & 50–950 ramp

primary

#3684B5

secondary

#C69B81

accent

#834ADD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3684B5

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

Preview Lab → · Contrast checker → · Palette generator →