#3783CA#3783CA

#3783CA is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.6% C 0.132 H 249.7°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#3783CA
RGB	rgb(55, 131, 202)
HSL	hsl(209, 58%, 50%)
HSV	hsv(209, 73%, 79%)
CMYK	cmyk(72.8%, 35.1%, 0%, 20.8%)
CIE-LAB	lab(53.28, 0.48, -43.51)
CIE-LCH	lch(53.28, 43.51, 270.63°)
OKLab	oklab(59.64% -0.0457 -0.1237)
OKLCH	oklch(59.64% 0.132 249.7)
XYZ	xyz(20.3485, 21.3068, 58.9059)
Luminance	0.2131 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783CA #CA7E37

analogous

#37CAC8 #3783CA #3739CA

triadic

#3783CA #CA3783 #83CA37

tetradic

#3783CA #C837CA #CA7E37 #39CA37

square

#3783CA #C837CA #CA7E37 #39CA37

split-complementary

#3783CA #CA3739 #CAC837

monochromatic

#1C456A #29649B #3783CA #67A1D7 #98BFE4

Accessibility & contrast

On white

3.99

#3783CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#3783CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783CA

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783CA	#FFFFFF	#000000	##000000
##3783CA	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6387CD

Deuteranopia (green-blind)

#4D79C9

Tritanopia (blue-blind)

#00949D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3783ca;
/* rgb */ color: rgb(55, 131, 202);
/* oklch */ color: oklch(59.6% 0.132 249.7);

Tailwind

colors: {
  custom: {
    50: '#80a6da',
    500: '#3783ca',
    950: '#000000',
  },
}

SCSS

$custom: #3783ca;
$custom-light: #80a6da;
$custom-dark: #000000;

JSON

{
  "hex": "#3783ca",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 202
  },
  "hsl": {
    "h": 208.98,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.59642,
    "c": 0.13184,
    "h": 249.7
  },
  "luminance": 0.21309
}

Semantic roles & 50–950 ramp

primary

#3783CA

secondary

#CFAD8E

accent

#9146E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3783CA

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

Preview Lab → · Contrast checker → · Palette generator →