#3784B7#3784B7

#3784B7 is a mid, moderate cyan. Relative luminance 0.207; OKLCH L 58.8% C 0.108 H 241.2°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3784B7
RGB	rgb(55, 132, 183)
HSL	hsl(204, 54%, 47%)
HSV	hsv(204, 70%, 72%)
CMYK	cmyk(69.9%, 27.9%, 0%, 28.2%)
CIE-LAB	lab(52.65, -6.83, -33.66)
CIE-LCH	lch(52.65, 34.35, 258.52°)
OKLab	oklab(58.84% -0.0523 -0.095)
OKLCH	oklch(58.84% 0.108 241.2)
XYZ	xyz(18.3708, 20.7316, 47.8240)
Luminance	0.2073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784B7 #B76A37

analogous

#37B7AA #3784B7 #3744B7

triadic

#3784B7 #B73784 #84B737

tetradic

#3784B7 #AA37B7 #B76A37 #44B737

square

#3784B7 #AA37B7 #B76A37 #44B737

split-complementary

#3784B7 #B73744 #B7AA37

monochromatic

#1B4059 #296288 #3784B7 #5DA1CE #8CBCDC

Accessibility & contrast

On white

4.08

#3784B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3784B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B7

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784B7	#FFFFFF	#000000	##000000
##3784B7	1.00	4.08	5.15	5.15
#FFFFFF	4.08	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)

#6D85B9

Deuteranopia (green-blind)

#5B78B6

Tritanopia (blue-blind)

#009196

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3784b7;
/* rgb */ color: rgb(55, 132, 183);
/* oklch */ color: oklch(58.8% 0.108 241.2);

Tailwind

colors: {
  custom: {
    50: '#7da7cd',
    500: '#3784b7',
    950: '#000000',
  },
}

SCSS

$custom: #3784b7;
$custom-light: #7da7cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3784b7",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 183
  },
  "hsl": {
    "h": 203.906,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58843,
    "c": 0.10841,
    "h": 241.2
  },
  "luminance": 0.20734
}

Semantic roles & 50–950 ramp

primary

#3784B7

secondary

#C79E83

accent

#854BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3784B7

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

Preview Lab → · Contrast checker → · Palette generator →