#3784B8#3784B8

#3784B8 is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 58.9% C 0.110 H 241.7°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3784B8
RGB	rgb(55, 132, 184)
HSL	hsl(204, 54%, 47%)
HSV	hsv(204, 70%, 72%)
CMYK	cmyk(70.1%, 28.3%, 0%, 27.8%)
CIE-LAB	lab(52.70, -6.49, -34.16)
CIE-LCH	lch(52.70, 34.77, 259.25°)
OKLab	oklab(58.9% -0.0519 -0.0964)
OKLCH	oklch(58.9% 0.11 241.7)
XYZ	xyz(18.4752, 20.7734, 48.3741)
Luminance	0.2077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784B8 #B86B37

analogous

#37B8AC #3784B8 #3744B8

triadic

#3784B8 #B83784 #84B837

tetradic

#3784B8 #AC37B8 #B86B37 #44B837

square

#3784B8 #AC37B8 #B86B37 #44B837

split-complementary

#3784B8 #B83744 #B8AC37

monochromatic

#1B405A #296289 #3784B8 #5DA1CF #8DBCDD

Accessibility & contrast

On white

4.07

#3784B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3784B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784B8	#FFFFFF	#000000	##000000
##3784B8	1.00	4.07	5.15	5.15
#FFFFFF	4.07	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)

#6C85BA

Deuteranopia (green-blind)

#5A78B7

Tritanopia (blue-blind)

#009196

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3784b8;
/* rgb */ color: rgb(55, 132, 184);
/* oklch */ color: oklch(58.9% 0.110 241.7);

Tailwind

colors: {
  custom: {
    50: '#7da7cd',
    500: '#3784b8',
    950: '#000000',
  },
}

SCSS

$custom: #3784b8;
$custom-light: #7da7cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3784b8",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 184
  },
  "hsl": {
    "h": 204.186,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.58895,
    "c": 0.10952,
    "h": 241.7
  },
  "luminance": 0.20775
}

Semantic roles & 50–950 ramp

primary

#3784B8

secondary

#C79F84

accent

#864ADD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3784B8

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

Preview Lab → · Contrast checker → · Palette generator →