#3783BA#3783BA

#3783BA is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.8% C 0.113 H 243.5°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3783BA
RGB	rgb(55, 131, 186)
HSL	hsl(205, 54%, 47%)
HSV	hsv(205, 70%, 73%)
CMYK	cmyk(70.4%, 29.6%, 0%, 27.1%)
CIE-LAB	lab(52.50, -5.21, -35.63)
CIE-LCH	lch(52.50, 36.01, 261.69°)
OKLab	oklab(58.76% -0.0503 -0.1007)
OKLCH	oklch(58.76% 0.113 243.5)
XYZ	xyz(18.5514, 20.5880, 49.4410)
Luminance	0.2059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3783BA #BA6E37

analogous

#37BAB0 #3783BA #3741BA

triadic

#3783BA #BA3783 #83BA37

tetradic

#3783BA #B037BA #BA6E37 #41BA37

square

#3783BA #B037BA #BA6E37 #41BA37

split-complementary

#3783BA #BA3741 #BAB037

monochromatic

#1B405C #29628B #3783BA #5FA0D0 #8EBCDE

Accessibility & contrast

On white

4.10

#3783BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3783BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3783BA

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3783BA	#FFFFFF	#000000	##000000
##3783BA	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)

#6A84BC

Deuteranopia (green-blind)

#5878B9

Tritanopia (blue-blind)

#009096

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3783ba;
/* rgb */ color: rgb(55, 131, 186);
/* oklch */ color: oklch(58.8% 0.113 243.5);

Tailwind

colors: {
  custom: {
    50: '#7da6cf',
    500: '#3783ba',
    950: '#000000',
  },
}

SCSS

$custom: #3783ba;
$custom-light: #7da6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3783ba",
  "rgb": {
    "r": 55,
    "g": 131,
    "b": 186
  },
  "hsl": {
    "h": 205.191,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.58763,
    "c": 0.11256,
    "h": 243.5
  },
  "luminance": 0.2059
}

Semantic roles & 50–950 ramp

primary

#3783BA

secondary

#C8A185

accent

#884ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3783BA

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

Preview Lab → · Contrast checker → · Palette generator →