#3683B4#3683B4

#3683B4 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.4% C 0.106 H 240.2°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3683B4
RGB	rgb(54, 131, 180)
HSL	hsl(203, 54%, 46%)
HSV	hsv(203, 70%, 71%)
CMYK	cmyk(70%, 27.2%, 0%, 29.4%)
CIE-LAB	lab(52.19, -7.45, -32.67)
CIE-LCH	lch(52.19, 33.51, 257.15°)
OKLab	oklab(58.42% -0.0528 -0.0921)
OKLCH	oklch(58.42% 0.106 240.2)
XYZ	xyz(17.8727, 20.3102, 46.1495)
Luminance	0.2031 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3683B4 #B46736

analogous

#36B4A6 #3683B4 #3644B4

triadic

#3683B4 #B43683 #83B436

tetradic

#3683B4 #A636B4 #B46736 #44B436

square

#3683B4 #A636B4 #B46736 #44B436

split-complementary

#3683B4 #B43644 #B4A636

monochromatic

#1A3E56 #286185 #3683B4 #5AA0CD #89BBDC

Accessibility & contrast

On white

4.15

#3683B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#3683B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3683B4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3683B4	#FFFFFF	#000000	##000000
##3683B4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B6

Deuteranopia (green-blind)

#5B77B3

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3683b4;
/* rgb */ color: rgb(54, 131, 180);
/* oklch */ color: oklch(58.4% 0.106 240.2);

Tailwind

colors: {
  custom: {
    50: '#7ca6ca',
    500: '#3683b4',
    950: '#000000',
  },
}

SCSS

$custom: #3683b4;
$custom-light: #7ca6ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3683b4",
  "rgb": {
    "r": 54,
    "g": 131,
    "b": 180
  },
  "hsl": {
    "h": 203.333,
    "s": 53.846,
    "l": 45.882
  },
  "oklch": {
    "l": 0.58418,
    "c": 0.1062,
    "h": 240.2
  },
  "luminance": 0.20312
}

Semantic roles & 50–950 ramp

primary

#3683B4

secondary

#C69B80

accent

#844BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3683B4

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

Preview Lab → · Contrast checker → · Palette generator →