#3784B4#3784B4

#3784B4 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.7% C 0.105 H 239.5°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3784B4
RGB	rgb(55, 132, 180)
HSL	hsl(203, 53%, 46%)
HSV	hsv(203, 69%, 71%)
CMYK	cmyk(69.4%, 26.7%, 0%, 29.4%)
CIE-LAB	lab(52.52, -7.88, -32.15)
CIE-LCH	lch(52.52, 33.10, 256.24°)
OKLab	oklab(58.69% -0.0533 -0.0906)
OKLCH	oklch(58.69% 0.105 239.5)
XYZ	xyz(18.0618, 20.6081, 46.1970)
Luminance	0.2061 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784B4 #B46737

analogous

#37B4A5 #3784B4 #3745B4

triadic

#3784B4 #B43784 #84B437

tetradic

#3784B4 #A537B4 #B46737 #45B437

square

#3784B4 #A537B4 #B46737 #45B437

split-complementary

#3784B4 #B43745 #B4A537

monochromatic

#1A3F56 #296285 #3784B4 #5BA1CD #8ABCDB

Accessibility & contrast

On white

4.10

#3784B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3784B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B4

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784B4	#FFFFFF	#000000	##000000
##3784B4	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)

#6E84B6

Deuteranopia (green-blind)

#5D78B3

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3784b4;
/* rgb */ color: rgb(55, 132, 180);
/* oklch */ color: oklch(58.7% 0.105 239.5);

Tailwind

colors: {
  custom: {
    50: '#7da7ca',
    500: '#3784b4',
    950: '#000000',
  },
}

SCSS

$custom: #3784b4;
$custom-light: #7da7ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3784b4",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 180
  },
  "hsl": {
    "h": 203.04,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.5869,
    "c": 0.1051,
    "h": 239.5
  },
  "luminance": 0.2061
}

Semantic roles & 50–950 ramp

primary

#3784B4

secondary

#C69B81

accent

#834BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3784B4

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

Preview Lab → · Contrast checker → · Palette generator →