#3783C5#3783C5

#3783C5 is a mid, vivid cyan. Relative luminance 0.211; OKLCH L 59.4% C 0.126 H 248.0°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3783C5
RGB	rgb(55, 131, 197)
HSL	hsl(208, 56%, 49%)
HSV	hsv(208, 72%, 77%)
CMYK	cmyk(72.1%, 33.5%, 0%, 22.7%)
CIE-LAB	lab(53.03, -1.31, -41.07)
CIE-LCH	lch(53.03, 41.09, 268.17°)
OKLab	oklab(59.36% -0.047 -0.1165)
OKLCH	oklch(59.36% 0.126 248)
XYZ	xyz(19.7661, 21.0738, 55.8384)
Luminance	0.2108 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783C5 #C57937

analogous

#37C5C0 #3783C5 #373CC5

triadic

#3783C5 #C53783 #83C537

tetradic

#3783C5 #C037C5 #C57937 #3CC537

square

#3783C5 #C037C5 #C57937 #3CC537

split-complementary

#3783C5 #C5373C #C5C037

monochromatic

#1C4365 #2A6395 #3783C5 #65A1D4 #95BEE1

Accessibility & contrast

On white

4.03

#3783C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#3783C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783C5

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783C5	#FFFFFF	#000000	##000000
##3783C5	1.00	4.03	5.22	5.22
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6586C8

Deuteranopia (green-blind)

#5179C4

Tritanopia (blue-blind)

#00939B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3783c5;
/* rgb */ color: rgb(55, 131, 197);
/* oklch */ color: oklch(59.4% 0.126 248.0);

Tailwind

colors: {
  custom: {
    50: '#7fa6d7',
    500: '#3783c5',
    950: '#000000',
  },
}

SCSS

$custom: #3783c5;
$custom-light: #7fa6d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3783c5",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 197
  },
  "hsl": {
    "h": 207.887,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5936,
    "c": 0.12568,
    "h": 248
  },
  "luminance": 0.21076
}

Semantic roles & 50–950 ramp

primary

#3783C5

secondary

#CDAA8B

accent

#8F48E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3783C5

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

Preview Lab → · Contrast checker → · Palette generator →