#3784D0#3784D0

#3784D0 is a mid, vivid cyan. Relative luminance 0.219; OKLCH L 60.2% C 0.138 H 251.0°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3784D0
RGB	rgb(55, 132, 208)
HSL	hsl(210, 62%, 52%)
HSV	hsv(210, 74%, 82%)
CMYK	cmyk(73.6%, 36.5%, 0%, 18.4%)
CIE-LAB	lab(53.88, 2.04, -45.96)
CIE-LCH	lch(53.88, 46.00, 272.54°)
OKLab	oklab(60.22% -0.045 -0.1308)
OKLCH	oklch(60.22% 0.138 251)
XYZ	xyz(21.2077, 21.8664, 62.7652)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784D0 #D08337

analogous

#37D0D0 #3784D0 #3738D0

triadic

#3784D0 #D03784 #84D037

tetradic

#3784D0 #D037D0 #D08337 #38D037

square

#3784D0 #D037D0 #D08337 #38D037

split-complementary

#3784D0 #D03738 #D0D037

monochromatic

#1B4772 #2665A3 #3784D0 #69A2DC #9AC1E7

Accessibility & contrast

On white

3.91

#3784D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#3784D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784D0

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784D0	#FFFFFF	#000000	##000000
##3784D0	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6189D3

Deuteranopia (green-blind)

#4A7ACF

Tritanopia (blue-blind)

#0096A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3784d0;
/* rgb */ color: rgb(55, 132, 208);
/* oklch */ color: oklch(60.2% 0.138 251.0);

Tailwind

colors: {
  custom: {
    50: '#81a7df',
    500: '#3784d0',
    950: '#000000',
  },
}

SCSS

$custom: #3784d0;
$custom-light: #81a7df;
$custom-dark: #000000;

JSON

{
  "hex": "#3784d0",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 208
  },
  "hsl": {
    "h": 209.804,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.60215,
    "c": 0.13836,
    "h": 251
  },
  "luminance": 0.21869
}

Semantic roles & 50–950 ramp

primary

#3784D0

secondary

#D3B190

accent

#9343E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3784D0

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

Preview Lab → · Contrast checker → · Palette generator →