#3784B0#3784B0

#3784B0 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.5% C 0.101 H 237.2°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3784B0
RGB	rgb(55, 132, 176)
HSL	hsl(202, 52%, 45%)
HSV	hsv(202, 69%, 69%)
CMYK	cmyk(68.8%, 25%, 0%, 31%)
CIE-LAB	lab(52.34, -9.25, -30.13)
CIE-LCH	lch(52.34, 31.52, 252.93°)
OKLab	oklab(58.49% -0.0546 -0.0848)
OKLCH	oklch(58.49% 0.101 237.2)
XYZ	xyz(17.6602, 20.4474, 44.0819)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3784B0 #B06337

analogous

#37B09F #3784B0 #3748B0

triadic

#3784B0 #B03784 #84B037

tetradic

#3784B0 #9F37B0 #B06337 #48B037

square

#3784B0 #9F37B0 #B06337 #48B037

split-complementary

#3784B0 #B03748 #B09F37

monochromatic

#1A3E53 #286181 #3784B0 #59A2CB #88BCDA

Accessibility & contrast

On white

4.13

#3784B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3784B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3784B0

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3784B0	#FFFFFF	#000000	##000000
##3784B0	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F84B2

Deuteranopia (green-blind)

#5F78AF

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3784b0;
/* rgb */ color: rgb(55, 132, 176);
/* oklch */ color: oklch(58.5% 0.101 237.2);

Tailwind

colors: {
  custom: {
    50: '#7ca7c7',
    500: '#3784b0',
    950: '#000000',
  },
}

SCSS

$custom: #3784b0;
$custom-light: #7ca7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3784b0",
  "rgb": {
    "r": 55,
    "g": 132,
    "b": 176
  },
  "hsl": {
    "h": 201.818,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.5849,
    "c": 0.10083,
    "h": 237.2
  },
  "luminance": 0.20449
}

Semantic roles & 50–950 ramp

primary

#3784B0

secondary

#C4987F

accent

#804CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3784B0

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

Preview Lab → · Contrast checker → · Palette generator →