#3784B5#3784B5

#3784B5 is a mid, moderate cyan. Relative luminance 0.207; OKLCH L 58.7% C 0.106 H 240.1°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3784B5
RGB	rgb(55, 132, 181)
HSL	hsl(203, 53%, 46%)
HSV	hsv(203, 70%, 71%)
CMYK	cmyk(69.6%, 27.1%, 0%, 29%)
CIE-LAB	lab(52.56, -7.53, -32.65)
CIE-LCH	lch(52.56, 33.51, 257.02°)
OKLab	oklab(58.74% -0.0529 -0.0921)
OKLCH	oklch(58.74% 0.106 240.1)
XYZ	xyz(18.1641, 20.6490, 46.7355)
Luminance	0.2065 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784B5 #B56837

analogous

#37B5A7 #3784B5 #3745B5

triadic

#3784B5 #B53784 #84B537

tetradic

#3784B5 #A737B5 #B56837 #45B537

square

#3784B5 #A737B5 #B56837 #45B537

split-complementary

#3784B5 #B53745 #B5A737

monochromatic

#1A4057 #296286 #3784B5 #5CA1CD #8BBCDC

Accessibility & contrast

On white

4.09

#3784B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#3784B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B5

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784B5	#FFFFFF	#000000	##000000
##3784B5	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D84B7

Deuteranopia (green-blind)

#5C78B4

Tritanopia (blue-blind)

#009095

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3784b5;
/* rgb */ color: rgb(55, 132, 181);
/* oklch */ color: oklch(58.7% 0.106 240.1);

Tailwind

colors: {
  custom: {
    50: '#7da7cb',
    500: '#3784b5',
    950: '#000000',
  },
}

SCSS

$custom: #3784b5;
$custom-light: #7da7cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3784b5",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 181
  },
  "hsl": {
    "h": 203.333,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.58741,
    "c": 0.1062,
    "h": 240.1
  },
  "luminance": 0.20651
}

Semantic roles & 50–950 ramp

primary

#3784B5

secondary

#C69C82

accent

#844BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3784B5

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

Preview Lab → · Contrast checker → · Palette generator →