#3783BE#3783BE

#3783BE is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 59.0% C 0.117 H 245.3°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3783BE
RGB	rgb(55, 131, 190)
HSL	hsl(206, 55%, 48%)
HSV	hsv(206, 71%, 75%)
CMYK	cmyk(71.1%, 31.1%, 0%, 25.5%)
CIE-LAB	lab(52.69, -3.80, -37.62)
CIE-LCH	lch(52.69, 37.81, 264.24°)
OKLab	oklab(58.98% -0.0491 -0.1065)
OKLCH	oklch(58.98% 0.117 245.3)
XYZ	xyz(18.9826, 20.7604, 51.7120)
Luminance	0.2076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783BE #BE7237

analogous

#37BEB5 #3783BE #3740BE

triadic

#3783BE #BE3783 #83BE37

tetradic

#3783BE #B537BE #BE7237 #40BE37

square

#3783BE #B537BE #BE7237 #40BE37

split-complementary

#3783BE #BE3740 #BEB537

monochromatic

#1C425F #29628F #3783BE #61A0D1 #90BDDF

Accessibility & contrast

On white

4.08

#3783BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3783BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783BE

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783BE	#FFFFFF	#000000	##000000
##3783BE	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6885C1

Deuteranopia (green-blind)

#5678BD

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3783be;
/* rgb */ color: rgb(55, 131, 190);
/* oklch */ color: oklch(59.0% 0.117 245.3);

Tailwind

colors: {
  custom: {
    50: '#7ea6d2',
    500: '#3783be',
    950: '#000000',
  },
}

SCSS

$custom: #3783be;
$custom-light: #7ea6d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3783be",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 190
  },
  "hsl": {
    "h": 206.222,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58977,
    "c": 0.11725,
    "h": 245.3
  },
  "luminance": 0.20763
}

Semantic roles & 50–950 ramp

primary

#3783BE

secondary

#CAA487

accent

#8B49DE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3783BE

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

Preview Lab → · Contrast checker → · Palette generator →