#3784BC#3784BC

#3784BC is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 59.1% C 0.114 H 243.6°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3784BC
RGB	rgb(55, 132, 188)
HSL	hsl(205, 55%, 48%)
HSV	hsv(205, 71%, 74%)
CMYK	cmyk(70.7%, 29.8%, 0%, 26.3%)
CIE-LAB	lab(52.89, -5.09, -36.16)
CIE-LCH	lch(52.89, 36.51, 261.99°)
OKLab	oklab(59.1% -0.0507 -0.1022)
OKLCH	oklch(59.1% 0.114 243.6)
XYZ	xyz(18.9004, 20.9435, 50.6136)
Luminance	0.2095 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784BC #BC6F37

analogous

#37BCB1 #3784BC #3741BC

triadic

#3784BC #BC3784 #84BC37

tetradic

#3784BC #B137BC #BC6F37 #41BC37

square

#3784BC #B137BC #BC6F37 #41BC37

split-complementary

#3784BC #BC3741 #BCB137

monochromatic

#1B425D #29638D #3784BC #60A1D0 #8FBDDE

Accessibility & contrast

On white

4.05

#3784BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3784BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784BC

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784BC	#FFFFFF	#000000	##000000
##3784BC	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B85BE

Deuteranopia (green-blind)

#5879BB

Tritanopia (blue-blind)

#009298

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3784bc;
/* rgb */ color: rgb(55, 132, 188);
/* oklch */ color: oklch(59.1% 0.114 243.6);

Tailwind

colors: {
  custom: {
    50: '#7ea7d0',
    500: '#3784bc',
    950: '#000000',
  },
}

SCSS

$custom: #3784bc;
$custom-light: #7ea7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3784bc",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 188
  },
  "hsl": {
    "h": 205.263,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59104,
    "c": 0.11409,
    "h": 243.6
  },
  "luminance": 0.20946
}

Semantic roles & 50–950 ramp

primary

#3784BC

secondary

#C9A286

accent

#884ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3784BC

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

Preview Lab → · Contrast checker → · Palette generator →